The top two Army leaders said the THAAD deployment also adds potential delays in modernizing the service’s missile defense systems.

Sending one of the U.S. Army’s seven prized Terminal High Altitude Area Defense (THAAD) batteries to Israel highlights the strain on the service’s air defense systems and personnel, which are increasingly deployed around the globe.

Israel has one of the world’s best defenses against missiles and rockets, but struggles to detect slower-moving unmanned aircraft, experts said.

Since Israel launched its ground invasion of Lebanon, Israeli forces and Hezbollah militants have clashed along the border while the Lebanese army has largely stood on the sidelines

Fox News' Greg Palkot reports on the rocket damage in the region as Israel continues its offensive against the terror group.