I'll be honest... The lore is useless... But for those who care there is still one.

Factions.
YSA: YSA stands for "Yellowcorner's Socialist Alliance". Their ideology if it wasn't clear is socialism(a big mix of the main ones. Marxism, Leninism and whatever). They are situated in the northern area of the main archipelago map(uploaded on Scratch). It's a relatively happy country and pretty successful.

YUR: YUR stands for "Yellowcorner's United Regions". Their ideology is (still to be choosed). They're situated South of the map(//). It's a relatively advanced and rich country.

Rebels/PMCs: The rebels and the PMCs(Private Military Company/ies) are small groups that either fight for money or ideology. They use guerrilla tactics, light armored "home made" vehicles and use more or less rusty weapons.

UFR: The UFR(Union of Federal Republics) is an alliance, mainly funded by the YUR and it's relatively powerful and quite capable. They have pretty strict rules of engagement and try their best to stay out of any conflict.

GD: GD stands for "Global Defence" and they're an alliance to keep the world peace. They use light green uniforms and vehicles and they are responsible for civilian evacuation and peace keeping.

Lore (Revised):
In the early 1960s, the YUR launched a full-scale offensive against the YSA, aiming to destabilize its eastern borders. The UFR, a coalition of western-aligned republics, joined the YUR in defending the captured territories. Despite internal opposition to the war, UFR forces now hold strategic zones once belonging to the YSA.
In response, multiple PMCs and rebel groups have risen to support the YSA, hoping to reclaim lost ground. Meanwhile, the GD remains neutral, focusing on civilian protection and pushing for a peace accord.

• Third Cookies Studio