The USS Croaker is one of 77 Gato class submarines that were constructed in 1944 as part of the most lethal submarine class of World War II. During the USS Croaker time in service, she conducted six war patrols in the pacific theater and sank 11 Japanese vessels. While she is greatly preserved, the USS Croaker is not in her original configuration. After World War II, the vessel became a hunter killer submarine with added sonar, radar, and quieting capabilities to combat the Russian threat during the Cold War. USS Croaker was brought to the Buffalo Naval Park in 1988 after being decommissioned in 1977. She is now on a National Register of Historic Places.