▁the ▁earliest ▁users ▁of ▁mus k ets ▁in ▁a ▁military ▁conflict . ▁It ▁also ▁util ized ▁large ▁can n ons , ▁most ▁not or iously ▁the ▁Great ▁Turkish ▁Bomb ard . ▁They ▁are ▁also ▁probably ▁the ▁first ▁to ▁use ▁mus k ets ▁ab o ard ▁ships . ▁ ▁Russia ▁ ▁St rel ts y ▁() ▁were ▁the ▁units ▁of ▁Russian ▁gu ards men ▁( sl . ▁stre lets , ▁стре ле ц . ▁literally ▁" sh oot er "; ▁often ▁translated ▁as ▁" mus k ete er ", ▁but ▁more ▁properly ▁" har qu eb uses ") ▁from ▁the ▁ 1 6 th ▁to ▁the ▁early ▁ 1 8 th ▁centuries , ▁armed ▁with ▁fire ar ms ▁and ▁hal ber ds . ▁They ▁are ▁also ▁collect ively ▁known ▁as ▁Stre lets ▁Tro ops ▁( С тре ле ц ко е ▁Во й ско ). ▁ ▁The ▁first ▁st rel ts y ▁units ▁were ▁created ▁by ▁Ivan ▁the ▁Ter rible ▁som etime ▁between ▁ 1 5 4 5 ▁and ▁ 1 5 5 0 ▁and ▁armed ▁with ▁the ▁arqu eb us . ▁They ▁first ▁saw ▁combat ▁at ▁the ▁Sie ge ▁of ▁Kaz an ▁in ▁ 1 5 5 2 . ▁Military ▁service ▁in ▁this ▁unit ▁became ▁lif el ong ▁and ▁her edit ary . ▁The ▁be arded ▁st rel sty ▁were ▁organized ▁into ▁reg iments , ▁each ▁with ▁a ▁long ▁coat ▁( ka ft ans ) ▁and ▁pointed ▁cloth ▁hat ▁of ▁a ▁distinct ive ▁colour . ▁By ▁ 1 6 8 0 , ▁there