Mark Twain | Mark | V-1 flying bomb | Mark Wahlberg | Mark Knopfler | Mark Zuckerberg | Mark Rothko | Mark Antony | Mark the Evangelist | Gospel of Mark | Mark Ronson | Mark Spitz | Mark Foley | Mark Murphy (singer) | Mark Murphy | Mark McGwire | Mark Hamill | Deutsche Mark | Mark Taper Forum | Mark Millar | Mark Lewisohn | Mark Kermode | Mark Lanegan | bomb | Mark Waugh | Mark Rydell | Mark Goodson | Mark Owen | Mark Mothersbaugh | Mark Medoff |
Two passing American F-16s piloted by U.S. Air National Guard Majors Harry Schmidt and William Umbach had mistaken the machine gun and anti-tank weapons flashes of the exercise for enemy fire and dropped a 227-kilogram (500 lb) Mark 82 laser-guided bomb on the Canadian position, despite orders to await confirmation.