Claim: Kahoʻolawe is a volcanic Island in Hawaii and in 1944 after  the Dec.7, 1061 military strike at Pearl Harbor in Oahu, Hawaii was used to prepare for any attacks and to train after the war ended.
Evidence: On December 7, 1941, after the Imperial Japanese Navy attacked Pearl Harbor and Oahu, the U.S. Army declared martial law throughout Hawaii, and it used Kahoʻolawe as a place to train American soldiers and Marines headed west to engage in the War in the Pacific.