By early 1971, PAVN troop strength in the Base Area 604 area was estimated by U.S. intelligence at 22,000 men: 7,000 combat troops, 10,000 personnel in logistical and support units and 5,000 Pathet Lao, all under the command of the newly created "B-70 Corps". There were differing views on what the expected reaction of PAVN to the offensive might be. General Abrams believed that unlike Cambodia, the North Vietnamese would stand and fight for the Laotian Base Areas. As early as 11 December he had reported to Admiral McCain that: