In mid-January, the three Sentai of the 5th Air Corps returned to Thailand to participate in the Burma Campaign and the 3rd Air Corps turned its attention to the Netherlands East Indies. In the end, more than 60 Brewster aircraft were shot down in combat, 40 destroyed on the ground, and approximately 20 more destroyed in accidents. Only about 20 Buffalos survived to reach India or the Dutch East Indies. The last airworthy Buffalo in Singapore flew out on 10 February, five days before the island fell. The RAAF and RNZAF fighter squadrons left for Sumatra and Java at the beginning of February.