Operation British was a failed military operation executed by the Principality of Zeon during the One Week Battle of the One Year War in U.C. 0079. The mission involved dropping a colony on the Earth Federation Forces' Jaburo base. The colony failed to hit its target, but its destruction still resulted in the deaths of billions of people. The incident was one of the key factors of the signing of the Antarctic Treaty.
Universal Century Canon
Shortly after declaring war on the Earth Federation, the Zeon Armed Forces moved a depopulated colony off of Side 2 to drop it on the Federation's Jaburo base, which had withstood all attacks, even those of nuclear weapons. The Federation managed to divert the colony from Jaburo, but it still plunged into Earth. The colony started to break up, but the massive central cylinder hit Sydney, Australia, causing a massive explosion that obliterated the city and a large portion of the continent around it.
Mobile Suit Gundam: The Origin
In Mobile Suit Gundam: The Origin episode 5 "Clash at Loum", the Zeon Armed Forces attacked Side 2 "Hatte", whose government had an anti-Zeon stance. On January 9, U.C. 0079, Zeon massacred the entire population of the Island Iffish colony with GG Gas and retrofitted it with a propulsion system to launch it towards Jaburo. The Federation managed to divert the colony from its intended course, but on January 16, as it entered Earth's atmosphere it separated into three main pieces. The front portion crashed on Sydney and wiped out the southeastern portion of Australia, the rear section's impact in the Pacific Ocean resulted in a tsunami that destroyed most of East Asia, and the middle portion crashed on western Canada while its debris rained all over America.
- The operation was named "Operation British" because historically, decolonization led to the collapse of the British Empire.