"Former Secretary of Defense Mel Laird has said that NATO is an alliance strung together by ships. That is certainly true. This is a reflection of the total dependence of the alliance upon the reinforcement/resupply effort. It is the Atlantic that gives NATO its character. The ocean which connects the members of the NATO alliance was exploited very successfully by a different alliance in the course of World War II. It was the basis for the longest, most bitterly fought, painful campaign of that war—the Battle of the Atlantic."