On 24 April 1966, MACV directed Operation BIRMINGHAM commenced under control of the 1st Infantry Division. Division OPORD 8-66, dated 19 April 1966, specified that the operation was to be conducted in TAY NINH Province. The area was bounded on the west and north by the CAMBODIAN Border, on the south by the SONG VAM CO River and TAY NINH City and on the east by the 40 N - S grid line Annex A, Operation Overlay. The two brigade reinf operation was launched to locate and destroy VC forces and base camps in the area of operations. Two reinforced brigades operated in assigned areas, and moved rapidly to successive areas by helicopter to exploit new intelligence on VC troop and supply installations. Planning was continuous and orders were issued for operations in new areas as the situation developed.
Combat operations after action rept. for period ending May 1966