On July 1, 1936, the Red Second and Sixth Army Corps successfully joined forces with the Fourth Front Army in the Ganzi area, and on the same day, the Party Central Committee also sent a congratulatory telegram in a timely manner, which read: "We celebrate your victorious rendezvous with infinite enthusiasm, and welcome you to continue your heroic march and go north to Shaanxi and Gansu to cooperate with and even rendezvous with the First Front Army." Pen? Interesting? Pavilion wWw. ｂiquge。 info to establish the base camp of the Chinese revolution in the northwest of China". ”

The arrival of the 2nd and 6th Army Corps of the Red Army was warmly welcomed and received by the commanders and fighters of the Red Fourth Front Army, and enthusiastic red slogans and slogans were plastered along the way, and red flags were planted in every household, turning the entire Ganzi region into a sea of red.

The comrades of the Fourth Front Army raised a large amount of grain, cattle and sheep, vacated the extremely clean houses, and gave them firewood and boiling water to live in, and also prepared firewood and boiling water for them.

The next day, in order to celebrate the victory of the two main forces of the Red Army, the two armies also held a grand party to exchange grassland and combat experience.

The whole venue suddenly became a sea of laughter, everyone was jubilant and excited, and the soldiers, regardless of their affiliation, rank, and age, shook hands and hugged each other, and even some emotional comrades wept with joy, fully embodying the fraternal unity and friendship of the two Red Army units, and the local "Boba Yidewa" (Tibetan Soviet) government also organized the Tibetan masses to sing and dance, and to welcome the soldiers of the Second and Sixth Army Corps of the Red Army.

After that, Commander-in-Chief Zhu delivered an enthusiastic speech at the meeting. The troupe of the Political Department of the Red Fourth Front Army performed wonderful programs such as "Welcoming Relatives" and "Red Army Dance," which won warm applause from the soldiers of the two armies.

The officers and men of the Second and Sixth Army Corps of the Red Army, who had just gone through hardships and sacrifices, were pleasantly surprised and excited, as if they had returned to their hometown Soviet area and felt the warmth of family.

The victorious rendezvous of the Red Second and Sixth Army Corps and the Red Fourth Front Army at Ganzi laid a solid foundation for the realization of the three main divisions of the Red Army and played an important role in opening up a new situation in the Chinese revolution.

On 3 July, in view of the corresponding role and great contributions played by the Red Second and Sixth Army Corps in the Long March, the Party Central Committee and the Central Military Commission, after full discussion and study, formally issued a telegram order to the Red Second and Sixth Army Corps on the formation of the Red Second Front Army and the appointment of its leaders.

The appointment order is as follows: "The Party Central Committee and the Central Revolutionary Military Commission have decided to form the Second Front Army with the Second Red Army Corps, the Red Sixth Army Corps, and the Independent Division of the Central Red Army, and appointed He Long as the commander-in-chief and commander of the Second Army (the corps was reorganized into an army), and appointed Bishi as the political commissar and political commissar of the Second Army, Xiao Ke as the deputy commander-in-chief, Guan Xiangying as the deputy political commissar, Chen Bojun (who has not yet arrived) as the commander of the Sixth Army, and Wang Zhen as the political commissar. This order. ”

After the reorganization of the Second Front Army of the Red Army, after a great discussion with the Fourth Front Army, in the end, the overwhelming majority of the comrades present at the meeting resolutely supported the central authorities' policy of going north, and safeguarded the unity of the two armies. Therefore, the meeting unanimously adopted a resolution that the two armies should immediately go north together.

At the same time that the Red Second and Fourth Front armies were victoriously reunited, because most of the energy of Chang Kaishen's Kuomintang army was contained by the "Liangguang Incident," the vast Soviet base areas in Shaanxi, Gansu, Ningxia, and Qingsui controlled by the Central Red Army ushered in a good opportunity for great development.

From March to June, the Red Army successively launched two battles of the Eastern Expedition and the Western Expedition won decisive victories, and the Northeast Army, the Northwest Army, and the Jinsui Army were all greatly shocked under the strong military pressure of the Red Army, and no longer dared to start the war lightly, but in order to make the Red Army no longer crusade against them, they sent the Red Army a large amount of grain and silver.

In addition, the Red Army won successive battles, seized a large number of the treasury and banks of the Kuomintang puppet government, and seized countless enemy money, food, and materials, so that the base areas completely solved the big problem of shortage of funds, and a large amount of funds were used to develop the economy and production.

After the political situation stabilized a little, the Soviet government once again offered the magic weapon of fighting local tyrants and dividing the land, but after Zhang Cheng's suggestion, the implementation of this campaign became much more gentle, and the landlords and gentry who did not have evil deeds or did not do much evil deeds only confiscated their excess land according to the proportion of the population, and after they obeyed the laws of the Soviet area, the Red Army treated them and other ordinary people equally, and did not commit any offence.

With the help of the Red Army soldiers, they vigorously repaired water conservancy facilities and reclaimed a large amount of arable land, and agriculture in the Soviet areas developed on an unprecedented scale.

After a large amount of capital was invested in the industries in the Soviet base areas, industrial and mining enterprises in various localities exploded like a blowout, and in just a few months, hundreds of new factories were built.

Moreover, the northwest region has always been an important resource area in China, and its mineral deposits are second only to the northeast region, which is rich in land and resources. With the help of Zhang Cheng's golden finger, many places with large mineral deposits were found, and the geologists touched them accurately, so that they all began to doubt their beliefs, thinking that Zhang Cheng was the god of the land.

This made Zhang Cheng also restrained a lot, too much, and then he deliberately pointed out a few mistakes, so that the geologists were busy in vain.

After finding the Yanchang oil field, Zhang Cheng was afraid that the premature appearance of the oil field would cause the Japanese army to covet it, so he no longer opened the golden finger indiscriminately, but the industrial base of the Soviet base area was still very weak, and not too much oil was needed, and a Yanchang oil field was completely enough, and Zhang Cheng would not feel much regret.

On the political front, the Red Army did a great deal of united front work against the Northeast Army and the Northwest Bureau in order to strive for the goal of the whole country reaching a consensus to resist Japan and isolate Chang Kaishen in the future.

At the same time, the commander-in-chief also issued a proposal to Chang Kaishen, Li Zongren, Chen Jitang, Bai Chongxi, and others in the conflict of the "Liangguang Incident" to 'stop the civil war and unite to resist Japan,' so that many people throughout the country, all political parties, organizations, and democratic personages profoundly understood that the Workers' and Peasants' Party was sincerely determined to stop the civil war and resolutely resist Japan.

Of course, the commander-in-chief also knew very well that after Chang Kaishen put down the "Liangguang Incident," he would definitely dispatch troops and generals to launch a military encirclement and suppression of the Soviet base areas again, so he also made full military preparations and established corps-level theaters in the major base areas.

Among them, Zhang Cheng's young column was assigned to the Yulin Theater, and Zhang Cheng was appointed commander of the Yulin Theater, responsible for military affairs in Yulin, Ordos, Shenmu and on both sides of the Yellow River.