The History of Chemicals Against Nature

<see whole timeline
Between 1965 and 1970
  –  

Vietnam War - Agent Orange

50% n-butyl ester 2,4-D and 50% n-butyl ester 2,4,5-T

Tonnage used: 11,712,860 U.S. gal (44,338,000 L; 9,753,000 imp gal)