What was the primary mission of UDTs prior to amphibious landings?

• A. Provide camouflage and concealment for landing craft
• B. Conduct aerial bombing of beaches
• C. Use submarines to clear routes
• D. Provide reconnaissance and underwater demolition prior to amphibious landing

Answer: (D)

Before amphibious landings, UDTs were tasked with preparing the route for the assault by combining reconnaissance with underwater demolition. They swam ahead to inspect the beaches and water approaches—checking tides, currents, depths, and exits—and to identify any obstacles or hazards. Then they used specialized equipment to clear those obstacles, often with charges, to create safe lanes for landing craft and troops. This proactive, two-part job of scouting the landing area and removing underwater and beach obstacles is exactly what one option describes. The other options describe activities that aren’t part of the UDT mission, such as camouflage for landing craft, aerial bombing, or submarine-based route clearing.