Three US soldiers were killed and many more wounded in a drone attack in north-eastern Jordan, near the border with Syria, said US President Joe Biden, who pinned the blame on Iran-backed groups. The deaths were the first fatalities of US troops in the region since the war between Israel and Hamas erupted in early October. Biden said the United States would “hold all those responsible to account at a time and in a manner our choosing” as he paid tribute to “the loss of these warriors in this despicable and wholly unjust attack.” In a statement, the president held “radical Iran-backed militant …