They are the members of the Mujahedin-e-Khalq, a terrorist group that is trying to overthrow the regime in Iran. They took part in the revolution to depose the Shah of Iran, but had ideological differences with the pro-theocracy supporters of Khomeni. So they were rounded up and jailed/executed and many of them escaped to Iraq, where they joined Saddam’s forces in the Iran-Iraq War in the 80s. After the pro-Iranian government took power in the 2000s, they were exiled and the US (after making a massive donation to the UN) had them relocated as refugees to a camp in Albania in 2013. There they have become a favorite of neocons like John Bolton, Mike Pompeo, and Rudy Giuliani as useful idiots to again weaponize against Tehran, despite their Marxist ideology.
No good guys here, only grievances, terror, and death.