Where was fourth Marine regiment in World War 2?

In 1941, The 4th Marine Regiment was assigned to guard the US Naval base at Cavite and Corregidor Island in the Philippines. After the outbreak of war, The Cavite battalion also went to Corregidor. American and Filipino Coast Artillery installations were put under the command of the regiment's colonel, who was thus responsible for the defense of the island, which surrendered in the early 1942. The survivors were interned by the Japanese for the duration of the war.