 The 18th Reconnaissance Regiment ( Polish : 18 <unk> <unk> ) of the Polish Land Forces is based in Białystok . The heritage of the unit was the former 18th Territorial Defense Battalion ( Polish : 18 Białostocka Brygada Obrony <unk> ) and prior to that the former 18th Mechanized Brigade . December 31 , 2001 , as a result of the restructuring of the Armed Forces , 18th Mechanized Brigade ( Polish : 18 Brygada <unk> ) was disbanded and in its place created the 18th Territorial Defense Battalion ( Polish : 18 Białostocka Brygada Obrony <unk> ) . 
