When the Luftwaffe has lost control of the daylight air and the German Army is still further weakened by its colossal losses in Russia, and the German people are weighed down by the fear of ultimate defeat and apprehension of vengeance, and the population of conquered Europe, elated at the prospect of liberation, is revolting, the chances of success for an Allied Expeditionary Force would be strong. Military experts are agreed that it would court disaster to try it before these conditions are fulfilled. Ever since the Battle of Russia began, impatient groups in England have clamored for an immediate attempt at invasion of the continent, and one can imagine how painful it must be for the perpetually aggressive Churchill to be forced to counsel prudence. He knows that if such an attempt were made and failed it could be fatal. On the other hand, if the Allied High Command waits for the favorable circumstances which are to be expected if we enter the war, we could justly hope not only to be able to invade the continent successfully but at low cost. Q. _Would United States troops be required for such an expeditionary force? Are we going to have another A.E.F.?_ A. I should think so, although one must admit the bare possibility that the Battle of Russia could make our participation with land troops less necessary militarily, although the political reasons for our entry would be strongest if the Red Army were winning. If the Russians were to whittle down the German land army sufficiently, the British might become strong enough eventually to deliver the knockout blow alone, but I doubt it. There are just twice as many Germans as there are English, and numbers still count, as we observe in Russia. A cool appraisal of the future indicates that the chances are against our being able to win the war without sending an A.E.F. If we go to war, it cannot be with any reservations. We cannot make war on a limited liability basis. There are strong reasons also for us to want to be represented in the armies of liberation. By the time matters have reached the stage for contemplation of an invasion of Europe, the temper of America may have so changed that there may be a great popular demand for an A.E.F. Q. _What are the strong reasons for our wanting to be represented with the armies of liberation?_