JAPANESE EFFORTS TO MAKE OUR POSITION UNTENABLE DURING THE MONSOON. (a) Land Forces. 11. Large scale operations by the Japanese in the monsoon will be impossible. Their offensive efforts must therefore be limited to infiltration by patrols, or to flooding the surrounding country by breaching the river embankments. The latter course seems by far the most likely, if it has not already occurred through natural causes, since it would leave our forces marooned in a very unhealthy and malarial locality.