(c) Air Forces It is probable that by November 1944 the strength of the Japanese air force in the Burma-Siam-French Indo-China-Malaya Sumatra zone will be about 250 aircraft. A further 50 aircraft could be made available as reinforcements. These reinforcements, it is estimated, could be operational in the threatened zone 8 days after orders to move. Of this total force of 300 aircraft only some 80%, namely 240 aircraft, will be available to meet our attack southwards in Burma. While strength, particularly at the beginning of the operations, will fluctuate as a result of wastage, it is likely to be maintained at the above figure over a period; Serviceability is estimated at 60% for the first 48 hours, dropping to 50% by the third day.