from at Peach Village, the 83rd Reorganized Division from at Qingtuo Temple (青驼寺), the 7th Army at He Yang (河阳), the 48th Reorganized Division from Tangtou (汤头) and the 5th Army from Laiwu. The 20th Reorganized Division from Dawenkou (大汶口) was ordered to go to Mengyin, while other nationalist units from the second line were also mobilized in the hope of annihilating the communists in a decisive campaign in the regions of Mengyin and Green Camel Temple regions. After the failed attempt to breakout in the south, the nationalist 74th Reorganized Division withdrew to the Menglianggu mountains. The three regiments of the 58th Reorganized Brigade of the nationalist 74th Reorganized Division was tasked respectively to secure the main peak of the Menglianggu mountains, Eagle's Nest and Lu Mountain. The 51st Reorganized Brigade of the nationalist 74th Reorganized Division was to secure Mount 520 and Mount 540, while the 57th Reorganized Brigade of the nationalist 74th Reorganized Division was to secure Mount 570 (also designated as Mount 600 in other historical records). Zhang Lingfu setup his headquarters of the nationalist 74th Reorganized Division was on the eastern half of Mount 540, and repeatedly asked the nationalist high command for reinforcements. Chiang Kai-shek believed that this was an excellent opportunity to annihilate the communist East China Field Army in a decisive campaign, so he ordered RoCAF to airdrop supplies to the besieged nationalists, and also ordered a total of ten army-sized nationalist reorganized divisions spearheaded by the 25th Reorganized Division and 83rd Reorganized Division to reinforce the besieged nationalists. As a result, the strategies of both sides became obvious to the opposing forces: the communists intended to destroy the besieged nationalist 74th Reorganized Division while avoiding being attacked and wiped out from both fronts, while the nationalists intended to attack their enemy from both fronts, using their besieged force as a bait, which would hold out long enough for the reinforcement to arrive. However, besieged nationalists could not hold as long as they were hoped to, because of the difficult landscape: the vegetation was sparse and there was not any water source. The rugged terrain meant that it was nearly impossible for the nationalist defenders to build any fortification and thus they were directly exposed to the enemy fire, suffering huge casualties. To compound the problem, most if not all heavy weaponries had to be abandoned because they could not be carried