Sentence:  The <WSD>United</WSD> States can help by communicating a genuine concern with the problems these countries face and a readiness to provide technical and other appropriate forms of assistance where possible . 
Meaning of the word marked with <WSD> tags:  North American republic containing 50 states - 48 conterminous states in North America plus Alaska in northwest North America and the Hawaiian Islands in the Pacific Ocean; achieved independence in 1776