David Cameron has hit back over defence cuts fears raised by military chiefs, insisting that Britain's forces are among the best-funded in the world.
The Prime Minister said "difficult decisions" are being taken under the Coalition's austerity programme and warned that no department is immune from making savings.
Chief of the General Staff General Sir Peter Wall said any gap between military resources and planned capabilities caused by spending cuts "could become quite dangerous, quite quickly".
Video report by ITV News political correspondent Romilly Weeks:
A further six government departments have agreed to cut their budgets as part of Treasury plans to find £11.5 billion worth of savings starting in the month before the general election, Chief Secretary of the Treasury Danny Alexander announced.
More than half of Whitehall has now agreed a settlement but around two thirds of the planned reductions have yet to be finalised.
Among the departments announced today is the Home Office, run by Theresa May who was reportedly resistant to major cuts and dubbed a member of the "national union of ministers".
The Department for Environment, Food and Rural Affairs, the Department for Culture, Media and Sport, the Scotland Office, Wales Office and the Law Officers Department have also agreed to cuts.