The entire point of the UIR vs COG (Pendulum Wars) was a fictional war that provided context to the Gears of War universe prior to E-Day. It clearly borrowed heavily from the IRL Cold War. The COG is clearly the “West” and the UIR, complete with their Eastern European accents and Eastern European philosophy and lifestyles, are the “U.S.S.R.”. Look no further than Garon Paduk from Judgement.
This was understood in the original trilogy + Judgement, comics, book etc…until Gears 5. Here comes Fahz out of no where (who on earth is this guy? Did I hot my head on a rock and forget about his role in previous games?) talking like a complete Brit…accent, slang, etc.
Does The Coalition not employ a Lore Master like most AAA series to avoid such immersion breaking mistakes? All other characters with distinct accents, Bernie etc. are familiar yet not nation specific, until Fahz “You’re out of your league Bruv” Chutani.