Sentence:  The peacekeepers failed to convince both civilians and rebels of their authority in the country. UNAMSIL was referred to as “U-nasty” and peacekeepers were called “<WSD>beachkeepers</WSD>” because cohorts could often be found enjoying the country's beaches. 
Meaning of the word marked with <WSD> tags:  A soldier on a peacekeeping mission who spends a lot of time at the beach.