Gaelic Socialist Army of Ireland

The Gaelic Socialist Army of Ireland (Irish: Arm Sóisialach na hÉireann in Éirinn) Is the Main army, Navy, Air Force, and Space Command for the Gaelic Christian Republic of Ireland. Armed with mostly soviet-era weapons and vehicles, they have received some alien technology from HYDRA, such as Chitauri Guns, they have also developed advanced weapons based on Chitauri designs given to them by HYDRA, and have been accused of using Bio-logical weapons, and preform illegal experiments, on humans.

Rebellion against England
In 2016, SHIELD discovered that N.Irish Separatist Forces had been using alien weapons to help them declare independence from England. Tony Stark also discovered that they have been selling weapons based on Chitauri design all over the world to terrorist and separatist groups. After the independence of N.Ireland, SHIELD and the Avengers with assistance of British and Irish Special Forces raid a SEE army base outside of Larkinvile. The SEE deploy modified T-80 and T-90 MBT's equipped with Chitauri weapons, and MIG-21 and MIG-17 jet fighters, as well as BTR-90's equipped with Energy beam cannons. They also use MI MI-24 "Hindi" Gunships equipped with Chitauri missiles and sonic weapons to combat the Avengers.

As the Tide of battle turns against the SEE, James O'Connor the General of the Army orders the denotation of a Biological weapon, and the deployment of T-100 Tyrants to combat the Avengers. This ultimately caused the "Deadzone" to appear. The city was infected by the Z-Virus and everybody present turned into "Freaks". With exception of the Avengers, Shield agents, and renaming SEE soldiers who were equipped with Biological containment suits.

After the battle Northern Ireland, established a containment zone around the city, and barred anyone expect for SHIELD and UN scientist from going in with a military escort to study the effects of the Z-virus on planets, animals, and people. The SEE have also deployed military patrols into the region, in reality they are working with Umbrella and Hydra to recover samples of the Z-virus.

Infinity war
During the Infinity War, the SEE along with other national militarizes and regional militias around the world, fought against Thanos with varying degree of success. The SEE had more degrees of success due to possessing modified alien weapons and Bio and Chemical weapons. When the final battle occurred against Thanos, the SEE resorted to rebuilding the damaged caused by Thanos during the initial invasion by his forces.