According to AFP, right from the outbreak of the conflict, many US senators have expressed concern about the country's missile reserves.
Senator Chris Van Hollen said: "We have consumed a large amount of interceptor missiles, while this is an essential weapon to protect US forces.
Mr. Hollen warned that the daily consumption of a large amount of this weapon could affect the US military's ability to maintain combat readiness.
According to US media, Chairman of the US Joint Chiefs of Staff Dan Caine is also among those expressing concern.
Faced with the above concerns, Defense Secretary Pete Hegseth has repeatedly affirmed that the US arsenal still meets combat requirements.
However, the US military has never announced the number of interceptor missiles it possesses.
Speaking to reporters on Air Force One on July 27 (local time), President Donald Trump affirmed that the US still has enough ammunition but admitted that it needs to increase reserves for modern weapons.
We have a lot of ammunition. However, with some more sophisticated weapons, we certainly want more," Mr. Trump said.
According to estimates by the Center for Strategic and International Studies (CSIS), before the conflict broke out, the US possessed more than 2,300 Patriot interceptor missiles and more than 450 THAAD missiles.
After about 5 months of fighting, the number of both types of missiles has decreased by about half or more.
President Donald Trump's administration is urging defense businesses to accelerate production.
President Trump said that many factories are being expanded to increase production capacity, especially for Patriot missiles.
This week, the US Department of Defense also signed a $58.6 billion 7-year contract with Lockheed Martin to produce Patriot missiles. The corporation said the contract will help accelerate the delivery of interceptor missiles to the US military.
