Like I said, there may or may not have been a small bump right after Pearl Harbor, but I'm talking about the entire conflict and whether recruiting increased or decreased during the war. You got some numbers?
The Pearl Harbor attack on 7 December 1941, followed by a declaration of war on Germany and Japan, greatly accelerated the mobilization of U.S. naval forces in the Atlantic and Pacific Theaters. On 30 June 1941, the Marine Corps had 3,642 officers and 41,394 enlisted Marines, and was expanding at the rate of 2,000 enlistments a month. After Pearl Harbor, the enlistments exploded with 8,500 in December 1941, 13,000 in January 1942, and 10,000 in February. By June of that year, the strength of the Marine Corps had more than tripled.
On 5 February 1942, the U.S. Navy established its first base on the European side of the Atlantic, in Londonderry, Northern Ireland, on the banks of the River Foyle. That forward base had become necessary be cause the fleet could not operate efficiently for any length of time more than 2,000 miles from a naval base.
here's the link:
http://www.nps.gov/archive/wapa/indepth/extContent/usmc/pcn-190-003125-00/sec4.htm