Cleanup Operations in Duckburg

"You know, the Regular Army, the Gilgamesh Federation, the Earth Federation, the Astra Militarum, the Duckburg National Guard, the Grand Army of the Republic, the Free Planet Alliance, the U.N Spacy, and the United Nation Cosmos Navy may have saved Duckburg from the Orks, the Locust Horde and Magica De Spell's Shadow Army, but Osea and Yuktobania would make all of these factions stop fighting when we play 'The Journey Home' to stop this horrible violence. Who calls for truce like this?"

--Su Ji-Hoon, How I Can Help Make the World Great (chapter)

The cleanup operations in Duckburg is an Osean-Yuktobanian joint mission to scrape Coalition of the Red Star presence away from Duckburg and the rest of Calisota.

The entire Grand Alliance, including the Regular Army, the Gilgamesh Federation, the Earth Federation, the Astra Militarum, the Duckburg National Guard, the Grand Army of the Republic, the Free Planet Alliance (Legend of the Galactic Heroes), the U.N Spacy, and the United Nation Cosmos Navy (Uchuu Senkan Yamato), are on cleanup operations to eliminate the remaining Orks, Locust Horde and Magica De Spell's Shadow Army forces (including some of the other Coalition of the Red Star armies) in these areas.

Osea and Yuktobania lead the elimination of remaining forces scattered around those places for the Grand Alliance.

This operation ended when The Journey Home is being sounded as the surviving Orks, Locust Horde and Shadow Army members who surrendered, captured or got convinced by this song began to join the Grand Alliance, foreshadowing the Seran Federation and the Imperium of Man's neutrality.

However, it would be causing the ISIS and the Grey Men using SOLGs to destroying Duckburg, which Operation Blastizo would be opened.