<span style="color: #222222;">North Atlantic Treaty Organization, NATO, has called for restraint and de-escalation in the West Asian region, as tensions soar following the killing of a top Iranian general. </span><br />'' <br />'' <span style="color: #222222;">NATO chief Jens Stoltenberg has warned that Tehran should avoid further violence and provocations, saying that a new conflict would be in no one's interest.</span><br />'' <span style="color: #222222;"> </span><br />'' <span style="color: #222222;">At an emergency session of NATO's ruling council, US officials provided the rationale behind the action against Iranian General Qasem Soleimani at Baghdad airport. Soleimani was head of Tehran's West Asia operations as commander of the Revolutionary Guards' Quds Force.</span><br />'' <span style="color: #222222;"> </span><br />'' <span style="color: #222222;">All NATO members not only supported the United States' move to kill Soleimani but also condemned Iran for allegedly supporting different terrorist groups.  </span><br />'' <br />'' <span style="color: #222222;">NATO maintains a 500-strong mission in Iraq, preparing local forces to take on Islamic State group extremists. However, its core training activities have now been suspended amid worsening security situations.</span><br />'' <span style="color: #222222;"> </span><br />'' <span style="color: #222222;">Tehran has vowed to avenge Soleimani's killing while US President Donald Trump has threatened major retaliation if any American targets are hit.</span><br />