 Complete the following phrase:  After the establishment of the Chinese soviet regime, Peng Pai, the leader of the regime proposed the construction of a gate for the Red Square and a Platform for speeches. Then the gate and the platform were built. There is a golden five-pointed star and two Chinese characters红场 Red Square embossed at the top of the gate and a couplet at both sides of the gate inscribed with 铲除封建势力,实行土地革命 Wipe out the feudal forces, Carry out Agrarian Revolution. At the center of the square, a speech transmission station was set up for the convenience of rallies. On December 1, 1927, a rally with over 50,000 participants was held to celebrate the establishment of Haifeng Soviet Government. On Jan. 1st 1928, troops from Nanchang City after Nanchang Uprising led by Dong Lang  Yan Changxi  met troops from Guangzhou City after 