Since pulling out of an arms-limitation agreement with Russia in 2019, the U.S. has quickly developed new weapons that could be used to stop a Chinese invasion force.
The goal for a recent delivery of ATACMS, a coveted long-range missile system, is to put more pressure on Russian forces in eastern parts of occupied Ukraine.
Ukrainian forces for the first time used a longer-range version of weapons known as ATACMS, striking an airfield in Crimea and Russian troops in southeastern Ukraine.
The strike on Iran on Friday was originally intended to be much broader in scope, but after intense pressure from allies, Israeli leaders agreed to ratchet it down.
While imposing sanctions on Iran, U.S. and European governments are urging restraint amid fears of a cycle of escalation as Israel weighs retaliation for an Iranian attack.