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On January 4, 1928 and January 4, 17 years of the Republic of China, Jiang Guangtou, who was reinstated at the Fourth Plenary Session of the Second Central Committee of the Central Executive Committee of the Party Central Committee of Guo Min, was reinstated as the commander-in-chief of the Northern Expeditionary Army. After the formation of the army, the Northern Expeditionary Army had a total of more than 40 armies and about 700,000 people! At that time, the deployment of the Northern Expedition was: the First Army marched north along the Jinpu Line; The Second Army advanced north from Luxi and Zhinan between the Jinpu and Jinghan lines; The Third Army captured Shijiazhuang from the Jingsui and Zhengtai lines to the east, and then transferred to the Jinghan line to advance northward; The Fourth Army marched north along the Jinghan Line, and then the Fourth Route would attack Beijing and Tianjin. At that time, Zhang Zuolin's An ** army participated in the war about 400,000, and Zhang Zongchang's army of the Lu army was about 100,000. A total of about 500,000 troops, but compared with the combat power, only An ** can fight, and the combat power of the Lu army is almost negligible. Nanjing sharpens its knives after the whole army! Zhang Zuolin's side was covered with battle clouds and nervously responded. The Third Army under Zhang Xueliang has also gone to the front line to prepare for war at any time! On April 7, 1928, Jiang Guangtou issued a general attack order, and all kinds of battles were launched at the same time! The 1st Army was well advanced on the Lunan and Jinpu lines. The attack was launched on the 7th, and Tancheng was captured on the 9th, and by the 10th, the Northern Expeditionary Army had already captured Taierzhuang, which was guarded by the Lu Military Department! By mid-April, the Northern Expeditionary Army was like a bamboo, directly occupying Lincheng, Tengxian, Yanzhou, Qufu and other places, and in the second half of the year, it occupied Laiwu and Tai'an, and the troops were in Jinan! Straight to Zhang Zongchang's vital point! After the Second Army launched an attack, it was in Handan, the first in Zhinan, and then resisted by the heavy troops of Zhang Xueliang's army, and the two sides fought hard in the area of Daimyo and Zhangde; In Luxi, because the combat strength of the Lu army was too weak, it was Lianke Yuncheng, Juye, Jining and other places. The Third Army rushed out of Niangzi Pass on April 20 to attack Shijiazhuang, except for Handan, which was still within the control of An**, the entire An** defense line was in danger at this time! Water leaks everywhere. Zhang Zongchang, who was in Jinan, silently looked at the ditches, trenches, and bunker groups in Zhonggong Town outside Jinan at this time. He couldn't believe that this elaborate field fortification was actually the work of a fifteen-year-old boy! "Nekaev, if you are sure that you will be able to storm this town?!" The tall and burly Zhang Zongchang had an extremely beautiful beard like Zhang Zuolin, and at this time he solemnly looked at the town not far away and said slowly to Nekaev, the commander of the White Russian mercenary army beside him. "No, Commander-in-Chief. Even if all my troops go up together, and with your heavy artillery, I'm not sure I'll be able to take this place. However, if your troops can attack with me, perhaps at the cost of about 5,000 to 8,000 casualties, we can take their outlying positions. Nekaev thought for a while, and after carefully looking at the defense of Nazhonggong Town, he said, "But if you want to capture here, I don't know how many people you have to lose before you can capture it, after all, their chain of bunkers is what I watched them build, and it will take too many casualties to take it." Zhang Zongchang was silent for a long time and walked down the city wall. The guards around him also hurriedly followed, and when they reached the bottom of the city wall, Zhang Zongchang suddenly asked: "What if I give them 300 boxes of medicines, 500 portable machine guns, 6,000 bags of flour, 5,000 bags of rice, plus 10 heavy artillery, 100 machine guns, 1,000 shells, and 100,000 bullets?!" Can we take them down?! Nekaev couldn't help but be stunned when he heard Zhang Zongchang's words! Then he shrugged his shoulders and said directly: "If this is the case, then I think even if all the troops under your command go up with us, no matter how heavy the casualties are, it will be difficult to take this town." Unless they run out of water to drink. Zhang Zongchang stood motionless at the base of the wall when he heard this, and only after a long time did he grit his teeth and say, "Then send it to them!" His grandma's! Lao Tzu can't do it! Let someone dig a well for them! Send them all I just said!! Wait a minute! Allocate 10 more heavy machine guns! His grandmother is a bear! Lao Tzu can't keep this Jinan City, since he can't keep Lao Tzu, he won't give them a good time! It will not be left to the Japanese!! With that, Zhang Zongchang angrily got on the horse and returned directly to his mansion, asking people to find Tu Qianjun! In fact, on 19 April, Japanese Prime Minister Tanaka decided to send 5,000 troops under the command of Lieutenant General Fukuda, commander of the Sixth Division, to march to Shandong. In addition, 460 Japanese troops stationed in Tianjin marched to Jinan. On the 20th, the Japanese troops from Tianjin arrived in Jinan first, and the Fukuda Division is expected to arrive in Jinan after landing in Qingdao on the 25th! After Japan sent troops, Zhang Zuolin and Nanjing both protested! Zhang Zongchang and Lin Xianzu even sent a telegram on 20 June asking the Beijing Government to lodge a protest with the Japanese envoys, but the Japanese side had already sent Nishida Koichi, the acting consul general of the Japanese garrison in Jiji, to have a secret talk with Zhang Zongchang long before the Japanese troops arrived. The Japanese side demanded that Zhang Zongchang pay for the rights and interests of Qingdao and Jiaoji Road, and the Japanese sent troops to expel the Southern Army, and after the Japanese army arrived in Jinan, the commander of the Japanese military police, Tian Youwang, personally met and demanded that the Japanese army be quickly aided! Facing such a predicament, Zhang Zongchang is actually very complicated, on the one hand, he doesn't want to be a traitor! After all, he is also from Shandong! With infamy on your back, you can't hold your head up for the rest of your life! But on the other hand, the Northern Expeditionary Army was pressing forward step by step, and the conditions given by the Japanese side were really tempting! At this time, he saw the field fortifications that Tu Qianjun was building in Zhonggong Town, and his heart suddenly moved! He can't stay in this Shandong, but he doesn't want to cheap the Japanese! You can't spare the Northern Expeditionary Army! So he decided to hand over all this piece of defense to Tu Qianjun! Tu Qianjun, who was busy digging wells, building command posts and dark forts, suddenly got the news that Zhang Zongchang was going to summon him, and couldn't help but be stunned, you must know that Zhang Zongchang hadn't met him for several months since he came to Shandong! At the beginning, he even defended his own troops with heavy troops. If it weren't for the tense war later, those heavy troops who defended Tu Qian's army might not have retreated. So at this time, Zhang Zongchang actually wanted to summon himself, which made Tu Qianjun very surprised. But he didn't say anything, and rushed directly to Jinan City with Shang Dinan and Lin Bao. When Tu Qianjun saw Zhang Zongchang, he was in his mansion. In the study, Tu Qianjun saw Zhang Zongchang, who was standing by the window and looking at the scenery outside the window. Seeing Tu Qianjun coming in, he turned around and waved his hand to let Tu Qianjun sit down. After Tu Qianjun gave him a military salute, he sat on the chair in front of Zhang Zongchang's desk. "Junzi, to be honest. I was angry when the rain pavilion asked you to come over, really angry. Zhang Zongchang sat on the chair and said slowly: "I know that I am not the opponent of the Northern Expeditionary Army, but I still feel uncomfortable being broken by the rain pavilion like this." ”