The U.S. Air Force marching unit prepares for the 48th Annual St. Patrick's Parade of Washington, D.C. on Sunday, March 11, 2018. (Photo by Jeff Malet)
The U.S. Marine Corps marching unit prepares for the 48th Annual St. Patrick's Parade of Washington, D.C. on Sunday, March 11, 2018. (Photo by Jeff Malet)
