Peter Moreira in the Toronto Star:
Hemingway, however, caught the espionage bug in Asia and didn’t shake it until World War II ended. When he returned to Cuba, he headed an FBI-funded spy ring to monitor Spanish fifth columnists in Havana. Gellhorn nicknamed the operation “The Crook Factory.” After that, he loaded drinking buddies on to his fishing boat with guns and a bomb and plied the Caribbean looking for U-boats.
Later, in France, Hemingway headed a small band of irregulars that moved in tandem with other allied troops heading westward to Berlin.