Reclamation Crusade

The Reclamation Crusade was a massive Imperial Crusade carried out by the Emperor's Trident Space Marine Chapter, that was a part of the larger Indomitus Crusade that took place for just over a century in the 42nd Millennium.

History
As the Reclamation Crusade waged on for 80 years, with many worlds the chapter came across as dead worlds, with nothing but chaos energy on the planet. The few worlds that were found in the isolated Reanoth Sector were protected by the chapter with furious zeal when assailed by both daemons and traitor Astartes invaded, hoping to purge and enslave. When Primarch Guilliman and his fleet arrived in the Reanoth Sector, the surviving astartes almost opened fire upon the ships thinking it was some sort of warp trickery, and many could not believe that the Ultramarines Primarch returned, before the remaining Trident ships opened fire on the ally fleet. Fortunately, Chapter Master Tercal Norith ordered his flagship, the Diasorlor, to place itself in front of the Chapter fleet in order to calm down his brothers. The hostilities ended when the first company docked with the Solar Harvest to show that their brothers and the reinforcements were real. What happened when the 1st Company reunited with their lost brothers, many brothers wept tears of joy.