Operation: Triage is an event that appears in the Sonic the Hedgehog comic series and its spin offs published by Archie Comics. It was an operation carried out by G.U.N. to assist the inhabitants of Sonic's World during the Shattered World Crisis.
When the world shattered apart, G.U.N. had to expand its forces very thin in order to provide support and assistance to the world's inhabitants, by means such as providing survival gear for the displaced, handling fallout from the earthquakes, and having their mechanical units keep the peace at night time due to the Dark Gaia energy's influences. However, not all of the military's forces took part in this mission, most notably Team Dark and the Spider Troupe.