APPENDIX. METHOD OF ATTACK. (a) (b) Attack on Kunming from Tongking by the line of the railway and possibly the Red River route. The easier, but longer , operation from Kwangsi Province. SCALE OF LAND ATTACK. (a) (b) Three divisions (with two divisions in reserve and on L. of C.), for the operation from Tongking. Seven to eight divisions for the operation from Kwangsi Province. SCALE OF AIR Fighters 180 ATTACK. Light bombers 190 for (a) or (b) Heavy bombers 180 Reconnaissance 50 MOST SUITABLE November to March (Dry PERIOD.