The opening shot of a New Haven Railroad train supposedly shows Tom's train home, leaving New York in the evening. But then the sunlight should be on its left side (as it is in the interior shot following).
Tom and his unit are transferred from Italy in July 1945 (according to what he tells Betty later) to the Pacific. They then participate in a major airborne amphibious assault. Problem: There were no major actions in the Pacific at that time. The last one, the Battle of Okinawa, ended in June. It had no airborne element.
In the film, Tom Rath and his paratroopers belong to the 509th Parachute Infantry Battalion, which actually saw combat in Italy during World War II. In reality (unlike the film), the 509th did not get sent to the Pacific Theater to fight the Japanese (or make a combat jump there) after the battalion's tour in Italy was over.
Near the end of the movie, when Betsy's at the police station, Tom asks Betsy over the phone if there are any charges against her. The policeman answers, "Just bring the license" before Betsy can ask him if there are any charges.