§ Norman Lamb
To ask the Secretary of State for Foreign and Commonwealth Affairs what the difference in roles is between a Defence Attaché and a Defence Adviser in UK embassies and diplomatic missions overseas. 
§ Mr. Mike O'Brien
Defence Attachés serve at embassies and Defence Advisers serve at High Commissions. Their role is the same.
Military Advisers as also attached to the Permanent Representatives to the UK Mission to the UN in New York and to the UK Delegation to the OSCE in Vienna.