Possible Clues:

• Embassy gets reservists back into fighting unit
• Large military force surrounded at mission
• Army taking on a tricky opening mission
• No armament for the foreigner there
• Perhaps limbering for the mission
• I get loan arranged for embassy
• Go in late to outmanoeuvre emissaries
• Not armament from another country
• Its mission is to be making a leg of it, perhaps
• Diplomatic mission