ida ▁and ▁Nav ahr ud ak , ▁both ▁of ▁which ▁hous ed ▁Jewish ▁gh etto es ▁during ▁World ▁War ▁II . ▁He ▁was ▁the ▁son ▁of ▁David ▁and ▁Be ila ▁B iel ski , ▁who ▁had ▁twelve ▁children : ▁ten ▁boys ▁and ▁two ▁girls . ▁ ▁World ▁War ▁II ▁When ▁Operation ▁Bar bar ossa ▁broke ▁out , ▁T uv ia , ▁Z us , ▁and ▁As ael ▁were ▁called ▁up ▁by ▁their ▁army ▁units ▁to ▁fight ▁against ▁the ▁Naz i ▁German ▁occup iers . ▁O wing ▁to ▁so ▁much ▁cha os ▁the ▁units ▁dis band ed . ▁They ▁fled ▁to ▁St ank iew ic ze , ▁where ▁their ▁parents ▁lived . ▁In ▁July ▁ 1 9 4 1 , ▁a ▁German ▁army ▁unit ▁arrived ▁in ▁St ank iew ic ze , ▁and ▁Jewish ▁residents ▁were ▁moved ▁to ▁the ▁Now og ró dek ▁gh etto . ▁ ▁Z us , ▁along ▁with ▁his ▁brothers ▁T uv ia , ▁As ael , ▁and ▁Ar on , ▁managed ▁to ▁fle e ▁to ▁the ▁nearby ▁forest ▁after ▁their ▁parents ▁and ▁other ▁family ▁members ▁were ▁killed ▁in ▁the ▁gh etto ▁in ▁August ▁ 1 9 4 1 . ▁ ▁Other ▁refuge es ▁joined ▁them ▁and ▁eventually ▁formed ▁a ▁large ▁part isan ▁group . ▁They ▁hid ▁in ▁the ▁for ests ▁of ▁Bel arus ▁throughout ▁World ▁War ▁II , ▁led ▁by ▁the ▁B iel sk is . ▁Z us , ▁along ▁with ▁his ▁brothers ▁T uv ia , ▁Ar on , ▁and ▁As ael , ▁managed ▁to ▁save ▁ 1