From the second half of 1937 to 1938 years, by LiZhaoLin, FengZhongYun and other leaders, in the songhua river downstream of the activity on both sides of the KangLian third, 6, and 9, according to BeiManfitflop communist army 11, temporary provincial party committee's decision, with a struggle, main is to place three shipments expedition Helen, open up new guerrilla area. Expeditionary force experienced difficulty overcoming difficulties, finally victory to complete the task. In the process, LiZhaoLin and his fellow soldier wrote a famous poem "the song of camping. In the poem, wrote:" tieling unique rocks, trees, bushes, torrential rain, powerful winds MaMing war on the wasteland water. Around the fire's unity, shines all over the sky red. The comrades! RuiZhi even if songjiang late life. The waves! Resolute, charge up by the Japanese aggressors, after the northeast, it is light, the surge of guanghua school of..."

The northeast anti-japanese united army of heroic struggle by the central committee of the communist party, the highly. November 5, 1938, the party's six plenary meeting to a YangJingYu as a representative of the northeast anti-japanese united army and the northeast compatriots, praise KangLian salute the northeast is "at snow with the enemy more than seven years of al and not afraid of hard struggle model".

In 1939, the northeast anti-japanese guerrilla war into extreme difficult phase. At this time, because of the scale of the crazy Japanese military "jihad" and tight economic blockade, make the anti-japanese united army activity area, shrinking most troops were forced to move to remote mountains. Battle in the thick ice and snow, and because of lack of food, often in the bark of hunger is suffering from cold and hunger, wild fruit of bitterness. However, the central committee of the communist party in honor of the electricity inspiring, still relentless struggle. On March 11, 1939 YangJingYu led Chiang guard of the first trip, he hit JiLinHua county wood dustpan-shaped vessel, QuanJian false forest river forest police team, rifle nearly of teams, machine guns captured three pretty. April, two attacks dun-hwa county big chain around the warehouse, remove the false police field DuoRen 200 armed. In August, the first deputy commander Chiang WeiZhengMin rate, take "the third army siege DaYuan" tactics, with a forces attack a figure city, destroy, metropolitan police force is false; In another SheFu forces in Peking University, QuanJian shahe, diagram, reinforcement of more than 100 people, with machine guns, rifles nearly captured two quite, destroyed a car. On October 7, Chinese communist party committee and the first south manchuria Chiang decided to pieces, scattered forces activities. YangJingYu rate of more than 400 people fought for mofitflop electranths, and by February 1940, in the Japanese "jihad" team from the trap, finally alone. The enemy to persuade him to surrender, he violent bullets answer the enemy. On February 23, YangJingYu caused in JiangXiNa security village WaiZi heroic XunGuo three way. The cruel enemy cut off YangJingYu head and cut open his abdomen, and found him in the intestines and stomach is full of hay, bark and cotton, not a grain of food. KangLian soldiers this overcoming difficulties, and terrible and unyielding, to fight until the last breath heroic spirit, make the enemy also shocked the world.