Further, they were in large part willing captives of the giant identified by Eisenhower as the military-industrial complex. Defense contracts were its currency, manipulated by more than 300 lobbyists maintained by the Pentagon on the Hill. The military provided V.I.P. tours, dinners, films, speakers, planes, sporting weekends and other perquisites, especially to senior committee chairmen in both Houses. A quarter of the membership of Congress held reserve commissions. Criticism of military procurements made a Congressman vulnerable to the charge of undermining national security.