Of U.S. foreign aid in 2004, 23.2% went to military assistance, 26.1% to economic political/security aid, and 50.7% to bilateral/multilateral development/humanitarian aid.
Source: Curt Tamoff and Larry Nowels. Foreign Aid: An Introductory Overview of U.S. Programs and Policy. Congressional Research Service, The Library of Congress. CRS Report to Congress received through the CRS Web. Last updated April 15, 2004. Accessed November 10, 2004 at http://fpc.state.gov/documents/organization/31987.pdf