Sentence:  While they deny the logic of history and geography, neither Gibraltar nor the Falklands will ever be truly "safe". One day these hangovers will somehow merge into their hinterlands and cease to be grit in the shoe of <WSD>international relations</WSD>. This day will be hastened if world governments take action to end tax havens. 
Meaning of the word marked with <WSD> tags:  The relationships themselves