Admiral Husband E. Kimmel; Wikimedia Commons

In February 1941 Admiral Husband E. Kimmel assumed command of the Pacific fleet that had recently been moved from San Diego to Pearl Harbor. In a message to the Chief of Naval Operations he stated:

“I feel that a surprise attack (submarine, air, or combined) on Pearl Harbor is a possibility, and we are taking immediate practical steps to minimize the damage inflicted and to ensure that the attacking force will pay.”