<span style="color: #222222;">The US has approved the deployment of 1,000 additional troops in West Asia for defensive purposes amidst tensions with Iran. <br />''<br />''The acting US Defence Secretary Patrick Shanahan said the deployment is being done to ensure the safety and welfare of US military personnel working throughout the region and to protect America's national interests. <br />''<br />''The announcement came hours after Iran said it would surpass the uranium-stockpile limit set by its nuclear deal in the next 10 days. <br />''<br />'' America has blamed Iran for last week's attacks on two oil tankers in the Gulf of Oman, an accusation Tehran has denied as baseless.</span>