During World War II, Ireland remained neutral, but its coastline became a crucial landmark for pilots crossing the Atlantic. To mark this, large stone markers spelling out ÉIRE (Irish for “Ireland”) were laid beside coastal lookout posts. These signs declared Irish neutrality, but also stood as symbols of independence and sovereignty.

The Coast Watching Service, set up in 1939, manned 83 Look Out Posts (LOPs) around the coast to monitor air and sea traffic. In Inishowen, posts were located at Malin Head (LOP 80), Glengad (LOP 81), and Inishowen Head (LOP 82). By 1943, ÉIRE signs were added, and—at the request of U.S. Ambassador David Gray—each was given a number to help American pilots navigate.

This system became especially important in the run-up to D-Day in 1944, when thousands of aircraft ferried across the Atlantic. The numbered signs allowed pilots to pinpoint their location on special maps and safely continue toward Britain.

Though the Coast Watching Service was disbanded in 1945, many ÉIRE signs remain visible today thanks to local volunteers. All three Inishowen signs have survived, including the restored ÉIRE 82 at Inishowen Head.

Photo Courtesy Chris Hill Photographic