<span style="color: #222222;">The European Union, EU has warned that US President Donald Trump's rejection of a UN treaty designed to regulate the global arms trade would hamper the global fight against illicit weapons trafficking.</span><br />'' <span style="color: #222222;">   </span><br />'' <span style="color: #222222;">The EU's chief diplomat, Federica Mogherini said, a decision by the US to revoke its signature would not contribute to ongoing efforts to encourage transparency in the international arms trade.</span><br />'' <br />'' <span style="color: #222222;">She said, the EU will continue to call on all states, and in particular the major arms exporters and importers, to join the Arms Trade Treaty without delay.</span><br />'' <br />'' <span style="color: #222222;">Trump said on Friday the United States would not abide by the 2013 treaty aimed at regulating the global arms trade, calling it misguided and encroachment on US sovereignty</span>