This part is likely more for ceremonial use than active duty but given the wear it is possible it was used for both

does show signs of prior use

Chest Size: 38" | Suggested Size: Small Regular - Label reads "sk 44"

Emerald Green Piping on Each Leg

Label reads M | Suggested Size: Medium / Around 58cm

Bulgarian People's Army Olive Green Cossack Shirt - Medium Scarf This part is likely moreAt a glance 100% Heavy Cotton Material 2 Chest Button Pockets Shoulder Epaulettes Rank Slides Engraved Belt Hooks & Buttons Cossack Style Eastern Bloc Warsaw Pact Kit Internal Drawstring Waist Junior Officer's Rank Epaulettes Hook & Eye Collar 1 4 Length 3 Button Front Solid Olive Green Colour Pit to Pit: 21" Suggested Size: Medium Slim Sleeve Length: 24" Short Collar to Hem: 26" Vintage Militaria Issued 1980's Cold War Issue Genuine Bulgarian