▁to ▁L viv . ▁From ▁January ▁to ▁August ▁ 1 9 1 9 ▁he ▁commanded ▁an ▁independent ▁batt alion , ▁regiment ▁and ▁Oper ational ▁Group ▁in ▁the ▁division ▁of ▁the ▁Colonel ▁W ład ys ław ▁S ikor ski . ▁From ▁August ▁ 1 9 1 9 , ▁he ▁was ▁an ▁officer ▁in ▁the ▁operating ▁department ▁and ▁an ▁observer ▁in ▁the ▁ 5 9 th ▁Air ▁Force ▁Squadron . ▁He ▁also ▁participated , ▁among ▁others ▁in ▁Polish - U k rain ian ▁batt les ▁around ▁Prz emy ś l . ▁ ▁Polish - B ols he vik ▁War ▁ ▁In ▁ 1 9 2 0 , ▁Abraham ▁def ended ▁the ▁city ▁of ▁L v ov ▁during ▁the ▁Polish - B ols he vik ▁War . ▁He ▁was ▁wounded ▁during ▁the ▁conflict ▁but ▁he ▁continued ▁performing ▁his ▁duties , ▁command ing ▁his ▁unit ▁while ▁being ▁carried ▁on ▁a ▁st ret cher . ▁ ▁World ▁War ▁II ▁He ▁commanded ▁the ▁Wiel k opol ska ▁Caval ry ▁Brigade ▁of ▁army ▁group ▁Poz nan , ▁under ▁General ▁T ade usz ▁K ut rz eb a . ▁From ▁ 1 9 3 9 - 4 5 ▁he ▁was ▁a ▁Pr ison er ▁of ▁War ▁in ▁O flag ▁VII - A ▁M urn au ▁in ▁Germany . ▁A ▁hand written ▁card ▁sent ▁by ▁Abraham ▁to ▁his ▁friend ▁in ▁Chicago ▁from ▁his ▁prison ▁has ▁been ▁preserved ▁and ▁is ▁currently ▁part ▁of ▁the ▁Central ne ▁Mu zeum ▁Je ń ców ▁Woj en nych ' s ▁collection . ▁ ▁Dec or ations ▁▁