The Mission to Fort Umson was a mission that took place at the start of the Swarm Invasion.
| Battles of the Swarm Invasion | ||
|---|---|---|
| 42 A.E. | Rescue of Fort Umson (Ambush of Fort Umson · Assault on the Stroud Estate · Mission to Fort Reval · Battle of Osmium Mine Bravo · Mission to the Tollen Dam · Skirmish in Speyer · Assault on the Tollen Dam) · Skirmish in the Wilds · Ambush on South Village · Mission to Fort Umson · Mission to Orzabal Crater · Mission to South Village · Mission to Azura Research Facility · Evacuation of Settlement 2 · Ambush of Bravelle · Ambush of Croya · Ambush of Holdstead Croft · Ambush of Five Pines · Ambush of Pasco's Village · Mission to Great Seran Rend · Skirmish on the Jacinto Plateau · Ambush of Riftworm Village · Second Mission to New Hope · Incursions in Kadar Valley · Mission to Mount Kadar Laboratory · Mission to OZP-11 · Battle of Old Ephyra · Skirmish in Pahanu · Hivebuster Offensive (Hivebust of Sanctum · Mission to Weilehi · Mission to the Wakaatu Nest · Hivebust of Pahanu · Mission to Croya · Hivebust of Bravelle) | |
| Conflicts of the Interwar Period and Outsider Movement | ||
|---|---|---|
| 18 A.E. | Recon Mission to Hanover · Recon Mission to Mercy · Recon Mission to Harkness Ford · Skirmish in Harkness Glen · Recon Mission to Westbrook · Recon Mission to Iron Hills | |
| 41 A.E. | Settlement 2 Protest Massacre | |
| 42 A.E. | Raid on Settlement 5 · Battle of Fort Umson · Assault on the Stroud Estate · Mission to Fort Umson | |