 Some military historians have argued that LeMay's theories were eventually proven correct.Near the war's end in December 1972, President Richard Nixon ordered Operation Linebacker II, a high-intensity Air Force, Navy, and Marine Corps aerial bombing campaign, which included hundreds of B-52 bombers that struck previously untouched North Vietnamese strategic targets, including heavy populated areas in Hanoi and Haiphong.Linebacker II was followed by renewed negotiations that led to the Paris Peace Agreement, appearing to support the claim.