The Japanese Burma Area Army was not equipped as other nominal units of comparable strength due to the dwindling external supply situation mainly because of increasing US and UK attacks on the Japanese naval supply lanes. As a result, many logistical requirements were locally purchased from Myanmar (Burma), Malai (Malaya), and Thailand. In 1943 the main responsibility of the BAA was to quell insurgencies of the Shan, Karen, and other tribal groups in the remote regions, and react to incursions of the Chindits from British India or Kuomintang forces from Yunnan.