Launching weapons from within their territory forces adversaries to look not only outward but also inside for threats, one expert said.

DUBAI, United Arab Emirates (AP) — Israel unleashed airstrikes across Iran for a third day on Sunday and threatened even greater force as some Iranian missiles evaded Israeli air defenses to strike buildings in the heart of the country. Planned talks on Iran’s nuclear program, which could provide an off-ramp, were canceled.

National security experts warn that Israel's attack on Iran shows why Chinese land and asset purchases in the U.S. pose a significant threat to American security.

Veteran nuclear scientists Mohammad-Mehdi Tehranchi and Fereydoon Abbasi have also been killed in separate attacks, Iranian state-owned Press TV reported. Khamenei condemned the targeted airstrikes on Iran's military and nuclear sites and vowed Tehran's severe retaliation against Israel.

Markets are having another bout of nerves after Israel bombed Iran, which is believed to have fired back drones in response.

Britain will not be moving to protect Israel from a barrage of Iranian drones following last night's strikes, according to reports. UK defence sources have hinted there are no plans to help defend the Jewish state as Iran hits back following last night's strikes.

While Israel has inflicted significant damage on Hezbollah’s UAV capabilities, Barri explained, much of the infrastructure remains intact.