Complex sentence: On 29 November 1914 he was awarded the "Pour le Mérite" for military bravery and Oak Leaves (signifying a second award) on 18 August 1915.
Split into simpler sentences: On 29 November 1914 he was awarded the "Pour le Mérite" for military bravery. He was awarded the Oakleaves (signifying a second award) on 18 August 1915.