Mid-Atlantic gapとは 意味・読み方・使い方

The Mid-Atlantic Gap was the gap in coverage by land-based Coastal Command antisubmarine (A/S) aircraft during the Battle of the Atlantic in the Second World War. It is frequently known as The Black Pit, as well as the Atlantic Gap, Air Gap, Greenland Gap, or just "the Gap". This resulted in heavy merchant shipping losses to U-boats. The Black Pit, the most feared area where most losses occurred, was the area southeast of Greenland. The gap was eventually closed in May 1943, as growing numbers of VLR Liberators (Very Long Range models) and escort carriers became available, and as basing problems were addressed.