The Duchy of Grand Fenwick decides that the only way to get out of their economic woes is to declare war on the United States, lose and accept foreign aid. They send an invasion force (in chain mail, armed with bows and arrows) to New York and they arrive during a nuclear drill that has cleared the streets.

Peter Sellersas Grand Duchess Gloriana XII / Prime Minister Count Rupert Mountjoy / Tully Bascombe
Jean Sebergas Helen Kokintz
William Hartnellas Will Buckley
David Kossoffas Professor Alfred Kokintz
Leo McKernas Benter
MacDonald Parkeas General Snippet
Austin Willisas United States Secretary of Defense
Timothy Batesonas Roger
Monte Landisas Cobbley
Alan Giffordas Air Raid Warden