I am going to assume your army is only 100,000 since you just buffed up your total population size twice in one year, which is against the rules.
Cruise missiles instantaneously strike 80% of all Olvaian military fortifications. Submarines strike the advancing naval forces and the fleet is crippled. Erinamese soldiers advance on the Olvaian foot soldiers and instantly engage them, making signifigant headway with the superior knowledge of the terrain. Aircraft take off at all points 200 miles within the Erinaum-Olvaia border and bomb out any shelter or fortification that might hold military personel.
Good going.
A transmission is sent to Chernarus not to get involved. This was my land in the first place, and for some reason I lost sovereignty to it. I wish to keep good relations between Erinaum and Chernarus in this RP. Please do not get involved.