oint ed ▁Deput y ▁F ühr er ▁to ▁Adolf ▁Hitler ▁in ▁ 1 9 3 3 , ▁H ess ▁served ▁in ▁that ▁position ▁until ▁ 1 9 4 1 , ▁when ▁he ▁fle w ▁solo ▁to ▁Scotland ▁in ▁an ▁attempt ▁to ▁negoti ate ▁peace ▁with ▁the ▁United ▁Kingdom ▁during ▁World ▁War ▁II . ▁He ▁was ▁taken ▁prisoner ▁and ▁eventually ▁conv icted ▁of ▁cr imes ▁against ▁peace , ▁serving ▁a ▁life ▁sentence ▁until ▁his ▁suic ide ▁in ▁ 1 9 8 7 . ▁ ▁H ess ▁en list ed ▁as ▁an ▁inf antry man ▁at ▁the ▁out break ▁of ▁World ▁War ▁I . ▁He ▁was ▁wounded ▁several ▁times ▁over ▁the ▁course ▁of ▁the ▁war ▁and ▁was ▁awarded ▁the ▁Iron ▁Cross , ▁ 2 nd ▁Class ▁in ▁ 1 9 1 5 . ▁Short ly ▁before ▁the ▁war ▁ended , ▁H ess ▁en rolled ▁to ▁train ▁as ▁an ▁av i ator , ▁but ▁he ▁saw ▁no ▁action ▁in ▁that ▁role . ▁He ▁left ▁the ▁armed ▁forces ▁in ▁December ▁ 1 9 1 8 ▁with ▁the ▁rank ▁of ▁Le ut nant ▁der ▁Reserve . ▁In ▁ 1 9 1 9 ▁H ess ▁en rolled ▁in ▁the ▁University ▁of ▁Mun ich , ▁where ▁he ▁studied ▁ge opol it ics ▁under ▁Karl ▁Haus ho fer , ▁a ▁pro ponent ▁of ▁the ▁concept ▁of ▁Lebens raum ▁(" l iving ▁space "), ▁which ▁became ▁one ▁of ▁the ▁pill ars ▁of ▁Naz i ▁ide ology . ▁H ess ▁joined ▁the ▁NS D AP ▁on ▁ 1 ▁July ▁ 1 9 2