Axios reported late on Wednesday Trump's meeting with Gulf leaders next week in New York is expected to focus on US plans for a postwar strategy.

The Congressional Budget Office said its analysis had been limited by the fact that the Defense Department did not respond to requests for information on the costs of the conflict.

The report from the nonpartisan Congressional Budget Office estimates the war will cost the country another $2 billion to $3 billion each month it continues.

The first-of-its-kind report acknowledges the military's munition shortfall and details some of the losses of American assets so far as part of Operation Epic Fury.

Hogere energieprijzen als gevolg van het conflict zullen naar verwachting opwaartse druk uitoefenen op de consumentenprijzen en de inflatie volgend jaar aanjagen.

The inspector also found a bottleneck in resupply, despite President Donald Trump's claims that US supplies are "virtually limitless".

The nation’s top diplomat has avoided the spotlight on the unpopular war, distance that could be politically advantageous. Those close to him say a future presidential run or a stint in the private sector could be on the table.

Washington's efforts for resuming ceasefire talks appear to have stalled, as Gulf states absorb escalating attacks from Iran and Iran-aligned Houthi militants.