▁the ▁rank ▁of ▁captain . ▁ ▁He ▁transferred ▁to ▁the ▁Re con na issance ▁Corps ▁on ▁ 1 4 ▁January ▁ 1 9 4 1 , ▁having ▁by ▁then ▁being ▁promoted ▁to ▁war ▁substant ive ▁lieutenant . ▁ ▁He ▁transferred ▁to ▁the ▁ 5 th ▁Sea for th ▁High land ers ▁on ▁ 1 3 ▁October ▁ 1 9 4 4 . ▁His ▁most ▁significant ▁fe at ▁came ▁in ▁the ▁Netherlands ▁towards ▁the ▁end ▁of ▁the ▁War , ▁when ▁he ▁led ▁a ▁batt alion ▁of ▁ 6 0 0 ▁men ▁behind ▁enemy ▁lines ▁in ▁the ▁dark , ▁re lying ▁on ▁his ▁sense ▁of ▁direction ▁as ▁the ▁maps ▁were ▁in ac cur ate . ▁The ▁Germ ans ▁w oke ▁up ▁the ▁next ▁morning ▁to ▁find ▁the ▁British ▁d ug ▁in ▁behind ▁them . ▁ ▁After ▁the ▁War , ▁B orth wick ▁wrote ▁his ▁second ▁book , ▁Sans ▁Pe ur ▁( rep ub lished ▁as ▁Battalion ▁in ▁ 1 9 9 4 ), ▁which ▁was ▁a ▁history ▁of ▁his ▁regiment ▁during ▁the ▁second ▁half ▁of ▁the ▁war . ▁Un like ▁many ▁regiment al ▁histor ies ▁written ▁by ▁comm itte es ▁or ▁retired ▁gener als , ▁it ▁was ▁written ▁from ▁the ▁perspective ▁of ▁a ▁junior ▁officer ▁who ▁fought ▁on ▁the ▁front ▁line , ▁and ▁was ▁highly ▁acc laimed . ▁ ▁For ▁the ▁rest ▁of ▁his ▁career ▁B orth wick ▁worked ▁mainly ▁as ▁a ▁television ▁and ▁radio ▁broad c aster , ▁writing ▁and ▁present ing ▁programs ▁on ▁subjects ▁from ▁Joseph ▁Mc Car thy ▁to ▁Bon nie ▁Prince