German U-boats threatened the Allies in World War II, but tactical changes and sheer numbers eventually negated the undersea peril.

U.S. Navy

Sunken U-boat U-576

By Nicholas Varangis

When most people think of World War II battle sites, North America seldom comes to mind. But finding a German U-boat 30 miles off Cape Hatteras on the Carolina coast serves as a reminder of the naval combat that took place just off the shores of the United States. Read more

U.S. Navy

Operation Dovetail: Guadalcanal Rehearsal

By Arnold Blumberg

By June 1942, the military might of Imperial Japan threatened Australia. The string of spectacular Japanese conquests in the South Pacific menaced lines of supply and communication between the United States and its allies and bases in the region. Read more

U.S. Navy

Rescue at Ladd Reef

By Paul Farace

As the submarine USS Cod left Apra harbor, Guam, on the afternoon of June 26, 1945, for her seventh war patrol, her crew of 97 officers and enlisted men were all but certain that their new assignment was to be junk hunting—a thankless and dangerous job that in the words of one Cod crewman saw “Uncle Sam risk a seven million dollar submarine and crew to sink a leaky sailboat not worth more than $20,000!” Read more

U.S. Navy

Bringing Down the Bridges

By John Mancini

In April 1941, German troops swarmed into Greece from Bulgaria. Despite a valiant defense by the Greek Army and support from the British, the Nazis smashed their battle lines and controlled Greece within weeks. Read more

U.S. Navy

Mission Critical Overlord Weather

By Gene J. Pfeffer

Operation Overlord, the cross-Channel attack that hit the Nazi-occupied beaches of Normandy in 1944, was the culmination of a grand strategy adopted early in the war, followed sporadically during the years of conflict, and aimed at defeating Hitler’s Reich by striking directly at Germany by invasion. Read more

U.S. Navy

Hemingway Goes Sub Chasing

By Robert E. Cray, Jr.

“We are going to have Christ’s own bitter time to win it, if, when, and ever,” commented Ernest Hemingway to his friend and editor, Charles Scribner, at the start of World War II. Read more