At least 1 regiment (a) D day D D + 14 1 Div. (b) D + 14 D + 28 2 Divs. D + 4 weeks D + 3 Divs. 8 weeks By D + 8 weeks there could, however, be two further divisions in the Bangkok area. The rate of reinforcement given above makes no allowance for any allied air interference with Japanese road and railway communications. (b) Naval Forces. Since by the Spring of 1944 the United States, irrespective of her Atlantic commitments, will have a considerable naval superiority in the Pacific the Japanese are extremely unlikely to reinforce their surface forces to interfere with allied landings.