During World War 2 Carole spent more time visiting troops than any other actress. She took time off from her career and dedicated herself to the war effort. Carole toured the country selling war bonds and entertained soldiers all over the world. The press called her "a heroine" and "pride of the yanks". She told reporters "It's not only a duty, it's a lark. Even if your clothes are wrinkled, your face is chapped to the ears and you're deaf from flying in bombers, it's like home when you come down in the midst of Americans. It's living such as I have never known back here." Carole joined the Hollywood Victory Committee and worked tirelessly with the Red Cross, the Naval Aid Auxiliary, and Bundles for Blue Jackets.
With Linda Darnell
She also collected cigarettes for the soldiers, taught first aid, and donated blood as often as she was allowed. Carole NEVER turned down a request to help and visited more than two hundred military bases across the United States. When she went to Camp Bowie for a three day appearance in 1942 she danced with hundreds of soldiers, sang fifteen songs, and signed more than one thousand autographs. In September of 1942 she visited the Mare Island Navy Yard where she sang for the injured men in the hospital ward. Carole became one of the soldier's favorite pin-up girls and they nicknamed her "The Blonde Bomber". When she appeared on the Command Performance radio show a soldier stationed overseas requested that she "just sigh" into the microphone. In November 1942 Carole started a five month tour of Europe and Africa with actresses Mitzi Mayfair, Kay Francis, and Martha Raye.