Complex sentence: On Sponeck's return from injury leave, von Manstein gave him command of 46th Infanterie Division which had taken the Kerch Peninsula on the extreme east tip of the Crimean Peninsula.
Split into simpler sentences: On Sponeck's return from injury leave, von Manstein gave him command of 46. Infanterie-Division which had taken the Kerch Peninsula on the extreme east tip of the Crimean Peninsula.