Labels:text | font | screenshot | document | typography OCR: FEBRUARY 8, 1971 Republic of Vietnam Army invades Laos MARCH 30, 1972 North Vietnamese invade South across the demilitarized zone MAY 9, 1972 U.S. mine North Vietnam ports, including Haiphong DECEMBER 18, 1972 Intensive bombing of North Vietnam launched DECEMBER 30, 1972 Nixon halts bombing of North Vietnam, agrees to resume peace negotiations JANUARY 28, 1973 Cease-fire agreed, all U.S. troops to leave in 60 days MARCH 10, 1975 North Vietnamese go on the offensive 150 miles from Saigon
