Show Japanese Drive rive On Russia Expected Soon By fly ROBERT P. P MARTIN MARTINR R China Feb 26 UP Well UP-Well Well informed American British and Chinese military experts exports ex ex- ports expressed belief Thursday that Japan would attack Russia through Sib Siberia e r ia within two months Russian sources likewise expressed belief that the attack would come but declined to speculate speculate speculate late on omits its date In some quarters it was suggested suggest suggest- ed that the belief as expressed in a survey y of expert was the result of wishful thinking Most of the experts however based their opinion on the belief that It was imperative for Japan to protect its flank and remove the danger of ot a Russian attack or of an arrangement by which United States tates planes might be based in Siberia The experts said they believed Japan would attack Russia as soon as the invasion of the Netherlands East Indies had taken a a. decided turn in its favor and that the attack attack attack at at- tack would be le made before any attempt to conquer India or Australia Aus Aus- They said also that an invasion of Australia was not of vital immediate immediate im im- immediate im- im mediate importance to Japan because because because be be- cause it had occupied Timor and occupation of New Guinea would make Darwin in northern Australia Austra Austra- lia as untenable as a major naval base without control of the air |