The Ministry of Defence has announced titles and assumed precedence:

Rt Hon Dr Liam Fox MP - Secretary of State for Defence
Nick Harvey MP - Minister for the Armed Forces
Gerald Howarth MP - Minister for International Security Strategy
Andrew Robathan MP - Minister for Defence Personnel, Welfare and Veterans
Lord Astor of Hever - Under Secretary of State for Defence (spokesman in Lords)
Peter Luff MP - Minister for Defence Equipment, Support and Technology