FORT A.P. HILL, Va. - U.S. Senator Tim Kaine, D-Va. visited Fort A.P. Hill June 2 as part of the Fredericksburg Military Affairs Council meeting here.While at A.P. Hill Kaine visited Soldiers from the 276th Engineer Battalion who were training here. The Soldiers discussed their training with Kaine and demonstrated how to load and fire the Mark 19 40mm grenade launcher.