As General Westmoreland's "Search and Destroy" missions continued, analysis from 1966 showed:
A An 88% increase in the number of communist fighters in South Vietnam
B. Communist troops preferring high maneuver warfare in the open countryside, disregarding the use of bunkers or prepared defenses
C. Communist troops retaining the initiative, with nearly 90% of combat actions initiated by North Vietnamese or Viet Cong troops
D. All of the above