India, July 22 -- An expert has warned that the United States may not have sufficient munitions to sustain a prolonged all-out war with Iran, as the conflict between the two countries continues to escalate since February 28.

While the Trump administration is reportedly weighing the possibility of a broader military campaign against Iran, America's ability to sustain such an effort could be constrained by shrinking stockpiles of air defence and long-range missiles, according to Katherine Thompson, a senior fellow in defence and foreign policy studies at the Cato Institute, as quoted by the New York Post.

"Time is the main factor here. If this goes on for weeks and then we settle into a cease-fire, it could be fine," Thompson told the new...