 The Japanese reinforced their two divisions in Burma with the 18th Division transferred from Malaya and the 56th Division transferred from the Dutch East Indies after the fall of Singapore and Java.They also brought in large numbers of captured British trucks and other vehicles, which allowed them to move supplies rapidly using southern Burma's road network, and also use Motorised infantry columns, particularly against the Chinese forces.The Royal Air Force wing operating from Magwe was crippled by the withdrawal of the radar and radio-intercept units to India and the Japanese soon gained supremacy in the air.