|Years of service||1984 –|
|Commands held||Theatre Troops|
|Awards||Companion of the Order of the Bath|
Educated at St Olave's Grammar School in Orpington, Brealey was commissioned into the Royal Artillery in 1984. He became Commander, Royal Artillery in December 2002, Assistant Chief of Staff, Plans at the Ministry of Defence in January 2005 and Deputy Commanding General of the Multi-National Corps – Iraq in October 2007. He went on to be General Officer Commanding, Theatre Troops in November 2008 and Director-General, Capability in November 2011.
|Deputy Commanding General Multi-National Corps – Iraq
|General Officer Commanding, Theatre Troops