Which patrols did US forces use before officially entering WWII to protect coastal waters and track U-boats?

• A. Neutrality patrols
• B. Convoy escort patrols
• C. Coastal defense patrols
• D. Maritime reconnaissance patrols

Answer: (A)

Patrolling the Atlantic to enforce neutrality and monitor submarine activity describes the pre-entry U.S. effort. Before the United States joined the war, the Navy carried out Neutrality Patrols in the Western Hemisphere to safeguard coastal waters and protect merchant shipping from German U-boat threats while avoiding full-scale combat. These patrols stretched along the Atlantic approaches to the U.S., into the Caribbean, and toward Europe, gathering intelligence on submarine movements and deterring aggression so that American interests and Allied shipments could be protected without entering the war. The other terms describe different wartime roles or initiatives that aren’t the standard designation for this prewar program.