Sentence:  The wording of diplomatic agreements and protocols is often deliberately designed either to soothe ruffled feathers &mdash; while pursuing an otherwise ruthless course &mdash; or to give assurance in sufficiently vague form that the <WSD>vaguery</WSD> might afterwards be exploited to diminish the effect of the assurances. 
Meaning of the word marked with <WSD> tags:  Vagueness, the condition of being vague.