The Long Island-class escort carrier was a two-ship class, originally listed as "AVG" (Aircraft Escort Vessels). They were converted from merchant ships.

The first ship of the class—, originally AVG-1, later ACV-1 then CVE-1—was launched on 11 January 1940, and served in the United States Navy

United States Navy

The United States Navy is the naval warfare service branch of the United States Armed Forces and one of the seven uniformed services of the United States. The U.S. Navy is the largest in the world; its battle fleet tonnage is greater than that of the next 13 largest navies combined. The U.S...

 through World War II

World War II

World War II, or the Second World War , was a global conflict lasting from 1939 to 1945, involving most of the world's nations—including all of the great powers—eventually forming two opposing military alliances: the Allies and the Axis...

.

The second and last ship of the class——was launched on 14 December 1939, and served in the Royal Navy

Royal Navy

The Royal Navy is the naval warfare service branch of the British Armed Forces. Founded in the 16th century, it is the oldest service branch and is known as the Senior Service...

 through World War II

World War II

World War II, or the Second World War , was a global conflict lasting from 1939 to 1945, involving most of the world's nations—including all of the great powers—eventually forming two opposing military alliances: the Allies and the Axis...

. It is also listed in U.S. Navy records as BAVG-1; the "B" presumably stood for "British".