On October 30 1945, not long after the Indonesian Declaration of Independence and early in the Indonesian National Revolution, Hasan Basry sneaked back into Kalimantan aboard the ship together with several other young militants () from Kalimas Port in Surabaya. Upon arriving in Banjarmasin, he contacted another Indonesian nationalist figure in the region, A. A. Hamidhan to print and distribute pamphlets regarding proclamation of Indonesian independence to other towns and cities in Kalimantan such as Kandangan and Amuntai.