▁the ▁ 5 0 0 th ▁SS ▁Par ach ute ▁Battalion ▁were ▁transport ed ▁to ▁air fields ▁at ▁N agy - B et sk erek , ▁Zag reb ▁and ▁Ban ja ▁Lu ka , ▁dressed ▁in ▁We hr macht ▁uniform s ▁for ▁security ▁reasons . ▁However , ▁the ▁troops ▁were ▁not ▁brief ed ▁on ▁the ▁operation ▁until ▁a ▁few ▁hours ▁before ▁it ▁was ▁launched . ▁They ▁then ▁linked ▁up ▁with ▁their ▁transport ▁aircraft , ▁including ▁the ▁ten - man ▁Luft wa ffe ▁D FS 2 3 0 ▁gl iders ▁that ▁would ▁deliver ▁the ▁gl ider - bor ne ▁troops ▁onto ▁their ▁object ives . ▁By ▁ 2 4 ▁May , ▁all ▁prepar ations ▁for ▁the ▁air bor ne ▁assault ▁were ▁complete . ▁ ▁Gr ound ▁forces ▁The ▁plan ▁for ▁the ▁ground ▁forces ▁of ▁von ▁Ley ser ' s ▁XV ▁Mountain ▁Corps ▁was ▁for ▁nine ▁separate ▁but ▁coordin ated ▁thrust s ▁toward ▁the ▁Dr var – B os ans ki ▁Pet rov ac ▁area ▁from ▁all ▁directions . ▁The ▁group ings ▁and ▁tasks ▁were : ▁ ▁The ▁ 3 8 4 th ▁Infantry ▁Regiment ▁of ▁the ▁ 3 7 3 rd ▁( C ro at ian ) ▁Infantry ▁Division ▁( C ro at ian ▁leg ion na ires ), ▁with ▁elements ▁of ▁the ▁ 2 nd ▁Company ▁of ▁the ▁ 2 0 2 nd ▁Pan zer ▁Battalion , ▁referred ▁to ▁as ▁ ▁after ▁its ▁commander , ▁ ▁Will am , ▁was ▁to ▁advance ▁east ▁at ▁ 0 5 : 0 0 ▁from ▁the ▁village