I'd imagine more like this:
(IN NO REAL ORDER)

Western Forces:
United States
United Kingdom
Germany
France
Italy
Norway
Iceland
Canada
Israel
Spain
Portugal
Poland
B​ulgaria
Turkey
Australia
Bulgaria
Romania
Estonia
Lithuania
India
Malaysia
Denmar​k
Finland
Latvia
Czech Republic
Slovakia
New Zealand
Saudi Arabia
South Korea
ect

Eastern Forces:
China
Russia (then turns to western forces at the end of the war)
Cuba
Iran
Pakistan
Kazakhstan
Uzbekistan
North Korea
Greece
Mongolia
Indonesia
Belarus
Armenia
Syria
Afghanistan
Egypt
Palestini​an territories
ect