Contents: Caterpillar Diesel ad - They pushed back the sea at Port Moresby; drawing of a very primitive snowmobile as part of an electric power company ad; Photo of JFK - he returned to Los Angeles for a leave after 11 months of fighting in the Pacific; Greatest battle of air weighs U.S. Bombers vs. Nazi industry - but Germans still produce - meanwhile Eisenhower begins speeding D Day preparations; Mustang, aviation's ugly duckling, becomes a top long-range fighter; The outlook in the Battle of Russia - by Maj. Gen. Paul B. Malone; Bid for Burma; Nazis seem to plan Ukraine stand despite red encirclement tactics; Why our Italian campaign is so tough; Enveloping Rabaul; Reds keep Curzon Line the issue in rejecting Polish conference - Pravda story of British offer of separate German peace injects new note in Allied relations; Lucky Strike cigarettes - attractive color ad; chart showing FDR's 12 budgets - reflect massive spending increases of WW II; Riddles of contract termination hold key