Complex sentence: During the First Anglo-Sikh War (1845--1846) Henry Tombs became Aide-de-Camp to Lieutenant General Sir Harry Smith and was present at the Battle of Moodkee, the Battle of Ferozeshah and the Battle of Aliwal.
Split into simpler sentences: During the First Anglo-Sikh War (1845--1846), Tombs became Aide-de-Camp to Lieutenant General Sir Harry Smith. He was present at the Battle of Moodkee, the Battle of Ferozeshah and the Battle of Aliwal.