Show notes
Last time we spoke about the second phase of the One Hundred Regiment Offensive. During the second phase of the Hundred Regiments offensive, CCP forces emphasized strongpoint and transportation warfare across the Taihang/Jizhong area. Units were organized with wings containing Japanese positions while a central force struck deeper, as in the Renhe Dasu fighting in early October 1940. Night raids seized strongholds, while engineers and sabotage teams disrupted roads, bridges, and mobility, and ambushes targeted Japanese foraging and supply routes. Across these theaters, the strategy was consistent: make Japanese control porous by destroying or capturing local nodes and forcing constant repairs, re-routing, escorts, and slowed reinforcement, so occupation logistics and strongpoint networks could not function reliably. This approach supported wider offensives by isolating strongpoints, draining enemy strength, and giving Communist base areas room to endure and expand. #204 The One Hundred Regiment Offensive Phase Three Welcome to the Fall and Rise of China Podcast, I am your dutiful host Craig Watson. But, before we start I want to also remind you this podcast is only made possible through the efforts of Kings and Generals over at Youtube. Perhaps you want to learn more about the history of Asia? Kings and Generals have an assortment of episodes on history of asia and much more so go give them a look over on Youtube. So please subscribe to Kings and Generals over at Youtube and to continue helping us produce this content please check out www.patreon.com/kingsandgenerals. If you are still hungry for some more history related content, over on my channel, the Pacific War Channel where I cover the history of China and Japan from the 19th century until the end of the Pacific War. After the two large-scale offensives carried out over wide areas of North China, the Japanese army did what it always did when control started to slip: it tried to turn mobile pressure back into something it could "manage" again. The Eighth Route Army's continued fighting had shown that Japanese-occupied space was not secure, and that base areas could still resist, strike, and persist even while under counterpressure. That was dangerous for occupation. If the enemy could keep operations going, Japanese lines of movement stayed uncertain and "stabilization" became a temporary illusion. To prevent the situation from worsening and to re-stabilize the occupied areas as quickly as possible, the Japanese mobilized heavy forces and launched retaliatory counter–"mopping-up" operations against anti-Japanese base areas in North China beginning October 6. The Japanese attempt wasn't only to punish; it was designed to take advantage of an asymmetry: the Eighth Route Army was striking and fighting continuously, and it did not have the luxury of resting, replenishing, and re-cohering as neatly as a garrison army might. Japanese commanders hoped that if they struck hard enough in enough places, the Communist main forces could be isolated, destroyed, or at least forced into a defensive posture that would break their operational tempo. At Liaodong and Yulin, Japanese reinforcements also created a second political-military stake. After the Yuliao Campaign ended, the Eighth Route Army headquarters issued instructions on October 1 to major regions, warning that enemy reinforcements in Liaodong and Yulin might use the opening to "sweep" the Taibei region. In the Communist operational mind, this wasn't just one threat; it was a pattern. A "sweep" could come as a wave that pushed inward, burned villages, destroyed supplies, and tried to force Communist forces out of their protected networks. Even if the offensive couldn't win a conventional decisive battle, it could aim to strip the base areas of people, food, and mobility—things that make guerrilla and strongpoint warfare possible. By October 19, 1940, the Eighth Route Army headquarters issued a counter–"mopping-up" operation plan, and civilian and military authorities in various regions launched counter-"mopping-up" operations accordingly. This is important background: in these campaigns, "mopping-up" was not only an army activity. The Japanese were attempting to break the base system itself—its logistics, its local administration, and the relationship between armed units and civilians who hid, moved, fed, and replaced them. So the counter-operations had to be just as systemic. The Communists needed to keep people alive, keep movement possible, and keep the enemy from consolidating inside a cleared space. In southeastern Shanxi's Taihang and Taiyue regions, the Japanese 1st Army aimed to strike the main force of the 129th Division and destroy anti-Japanese base areas by running a series of mopping operations from October 6 to December 5. The plan had a typical occupation logic: push through strongholds gradually, clear pockets methodically, and rely on local superiority—especially in manpower, logistics, and the ability to reinforce by road. And because the Communist main force had been operating without meaningful rest after the earlier offensives, the Japanese believed they could catch formations while they were still "in between battles." On October 6, in the Taihang region, more than 800 enemy troops from Wu'an in western Hebei began a "mopping-up" operation in the Yangyi area. By October 11, the Japanese posture escalated. Part of the Japanese Independent Mixed 4th Brigade departed from Liaoxian and Wuxiang, while part of the 36th Division departed from Lucheng and Xiangyuan; together they totaled over 3,000 troops. Coordinating from north and south, they carried out operations to "mop up" both banks of the Zhuozhang River between Yulin, Liaoxian, and Wuxiang, encircling and clearing the south side of the Yulin–Liaoxian highway. This emphasis on riverbanks and highway corridors reveals the Japanese method: move along terrain that controls movement, then compress enemy options until the defenders have to fight inside a narrowing space. The counter to that method required more than bravery. The Eighth Route Army's 385th and 386th Brigades, along with the 1st Column of the Decisive Battle, fought on inner lines—where they could move more rapidly between known local positions and threaten the enemy's flanks or supply behavior. Meanwhile the New 10th Brigade fought on outer lines, where it could intercept, delay, and force the enemy to spend time reacting instead of clearing. By the morning of October 15, the New 10th Brigade delivered a concrete example of that interception strategy. Two regiments ambushed an enemy motor-transport convoy at Gongjiagou on the Heliao Highway, destroying more than 40 vehicles and annihilating more than 100 Japanese soldiers escorting the convoy. The meaning of a convoy ambush is strategic even when the numbers are modest: vehicles represent speed, logistics, and reinforcement. If the enemy loses vehicles repeatedly, "mopping" becomes slower, and slower clearing creates openings for the defenders to reorganize, disperse, or shift main effort. After that, on October 17, the enemy forces that had been mopping up the convoy withdrew in different directions. Withdrawal in multiple directions is a sign that the Japanese clearing operation, meant to compress a space, had instead been forced into a reactive mode. It also hints at a recurring pattern in these years: Japanese units could clear what was already weak, but when defenders hit their movement corridors, the occupiers had to spend time and combat power simply to recover mobility. The next major sweep began October 20, 1940, and it was much larger. Nearly 10,000 troops—from the 36th Division and Independent Mixed Brigade No. 4—set off from multiple locations, including Wu'an, Liaoxian, Wuxiang, and Lucheng, to sweep the area east and west of the Qingzhang River, focusing on land between Matian and Zuohui. Crucially, that was not random ground. The Japanese sought to strike the CCP Central Committee Northern Bureau, the Eighth Route Army headquarters, and the 129th Division headquarters, along with party and government organs of the Jin-Ji-Yu Border Region, located together with Shexian and Piancheng. In other words, the Japanese targeted not just armed units but the political-administrative heart that makes base areas function. Once in the attack area, the Japanese carried out "mopping-up" operations paired with burning and killing for several days. That brutality wasn't only cruelty; it served a purpose. Burning villages, destroying crops, and killing civilians could deny the base area food and shelter while making local cooperation more difficult. Then, on October 26, the Japanese began to withdraw and carried out mopping-up in different areas on the way back. The base area was "severely damaged and destroyed," indicating that even when the Japanese didn't annihilate the main Communist force, they could still achieve degradation—hurting the system they needed to keep operating. But the Communists were not simply absorbing damage. On October 29, a force of over 500 men from the 36th Division, plus over 400 supply and laborers, was mopping up Huangyandong and advanced through Zuohui to Guanjia'nao east of Panlong, preparing to return to Wuxiang. This is where counter-mopping becomes operationally dangerous for the occupier. Supply and labor detachments move differently from combat formations, and they represent an enemy's assumption that the base area is being "cleared." The Eighth Route Army headquarters ordered, at 1:00 p.m., for the 129th Division to concentrate its main force to annihilate the enemy. That night, the 129th Division—uniting the main forces of the 385th and 386th Brigades, parts of the New 10th Brigade, and the First Column of the Death Squad—surrounded the enemy at Guanjia'nao with a plan to launch a general offensive at 4:00 a.m. The besieged enemy, besides quickly building fortifications, seized Fengkengding high ground southwest of Guanjia'nao under cover of darkness. The two high points helped defenders support one another and resist stubbornly. The battle lasted until dawn on October 31, when most of the enemy had been annihilated, leaving only more than 60 men to hold positions. Then reinforcements arrived—over 1,500 from Huangyandong—supported by more than 10 aircraft. The 129th Division withdrew, and the remaining enemy fled toward the flood, leaving behind more than 280 corpses. By then, most Japanese troops had withdrawn from the central base area. The background stake is clear: "mopping-up" could damage and burn, but if defenders could convert the Japanese attempt into a trap—especially when enemy units had become separated from their core and committed to clearing—they could turn a destructive operation into a costly one for the occupier. In early November, the Japanese continued. In Licheng south of Taihang, Japanese forces invaded Nanweiquan and Beiweiquan and then Xijing. Elsewhere, Japanese forces in Xiangyuan invaded Panlong via Xiying, attempting to attack Dongtian and the area around Zhuanbi, where the Eighth Route Army headquarters was located. In that moment, the 386th Brigade was ordered to rush to the north–south line of Damocun, east of Panlong, block the invading enemy, and cover the transfer of the Eighth Route Army headquarters. At 9:00 a.m. on November 3, 1940, fierce fighting broke out as the troops finished deploying near Damocun. The Japanese launched continuous attacks and captured some positions. The 386th Brigade held until 4:00 a.m. on November 4, then withdrew after the headquarters successfully moved. The Japanese attempt to launch a pincer attack failed, and they retreated to the Baijin Line on November 5. Even when Japanese action couldn't be fully blocked, the counter's aim was not only tactical survival but prevention of strategic encirclement—protecting the central institutions and preserving the ability to fight again. In the northern Taihang region, more than 2,500 enemy troops from Heshun arrived in Yushe on November 3 via Hanwang Town and Changcheng Town, reinforcing Japanese forces in the Yu, Liao, and Wu areas. Then they carried out repeated mopping operations south of the Yuliao Highway, including Jiangtang, Lingshang, Songjiazhuang, Guojiao, and Dayouyi. Harassment and attacks by military and civilians forced Japanese troops back into their strongholds by the 13th. A "40-day" counter-mopping operation in Taihang came to an end. The term "40-day" isn't only calendar time; it suggests that these were not one-off battles but sustained campaigns of movement, dispersal, and repeated harassment meant to drain the enemy's capacity. Starting November 17, the Japanese launched a multi-pronged attack on Qinyuan and the area north of Guodao Town. The attack involved part of the 37th Division from Qin County and Nanguan Town, part of the Independent Mixed Brigade from Pingyao, Jiexiu, and Huo County, and a battalion of the 41st Division from Hongdong—more than 7,000 troops deployed to attack Qinyuan and the north area. But the Taiyue Military Region response shows how the Communist counter-mopping wasn't always to meet force with force. To avoid the enemy's "sharp edge," the Taiyue Military Region formed two detachments—Qin East and Qin West—with leadership and main force moving to both sides of the Qin River outside the Japanese attack zone, targeting scattered Japanese troops instead of being fixed into a single killing field. By November 23, due to harassment by local armed forces, the Japanese reached the attack zone and then carried out dispersed mopping operations. Qinyuan County was the most severely damaged, with more than 5,000 people killed (about one-tenth of its population), nearly 10,000 livestock killed and over 7,000 stolen, and 30,000 to 40,000 houses destroyed. Those details are brutal, but they explain why background stakes mattered: "mopping-up" was meant to break the social base. If civilians died or fled, the guerrilla system became harder to sustain. The response from the Dayue Military Region seized the opportunity created by Japanese dispersal. On November 23, the 42nd Regiment of the Qinxi Detachment annihilated more than 100 Japanese soldiers in Guantan. On November 27, parts of the 42nd and 59th Regiments killed or wounded more than 160 in Huhanping and Mabei. The Qindong Detachment's 17th and 57th Regiments inflicted serious damage in a series of places—Guang'ao, Chenjiagou, Longfosi, Wuyuanzhen, Nanweicun, Nanli, and more. The 17th Regiment's battle at Longfosi annihilated more than 100 Japanese. Additional heavy losses were inflicted by the 212th Brigade in Jiaokou. By December 5, the Japanese were forced to withdraw from the Taiyue area in separate routes. Strategically, dispersal punished the occupier because scattered units are harder to protect and easier to ambush. Across the Jin-Cha-Ji Border Region, anti-"mopping-up" operations unfolded gradually, beginning with the Pingxi area, the first target of the Japanese on the path toward the Japanese-held headquarters and rail lines. Pingxi mattered because it directly threatened the headquarters of the Japanese North China Area Army and Beiping—the puppet regime's center—and also threatened the Pinghan and Pingsui railways, North China's main transportation lines. So Pingxi became an operational priority: if the occupier couldn't keep the rail network secure, their ability to reinforce and supply their own strongpoints suffered. On October 13, 1940, more than 10,000 Japanese and puppet troops attacked Sanpo, the central area of the Pingxi b…
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