As Iran retaliates for an Israeli strike on the South Pars gas field, one analyst warns the war is "now hitting the plumbing of the global energy system."

A woman sifts through the rubble of a house damaged by missile attacks in Tehran on March 15. (Majid Saeedi/) Now entering its fourth week, the Iran war has engulfed the Middle East, killed more than 2,

The Israeli military began a ground offensive targeting Gaza City on Tuesday, slowly squeezing in on the Palestinian territory's largest city that has seen block after block already destroyed in the Israel-Hamas war.

Israel Katz, the defense minister, said he ordered troops to destroy more bridges and buildings in southern Lebanon, stoking worries that Israel was widening a military-controlled buffer zone there.

Follow NBC News for live updates on the latest about the war with Iran, where the U.S. launched bunker buster bombs, while Israel struck Lebanon.

Israel has pounded Tehran with airstrikes as Iranians mark Nowruz, or the Persian New Year. The attacks Friday came a day after Israel pledged to refrain from more strikes on a key Iranian gas field after Iran intensified its attacks on oil and natural gas facilities around the Gulf.

Israel has warned Iran's new missile could reach London after Tehran fired ballistic missiles towards a UK-US base over 2,000 miles away. Strikes also hit Israel, injuring dozens, as Iran vowed to deploy new tactics in its campaign.

The Islamic Revolution Guards Corps (IRGC) announces execution of the 66th wave of its ongoing retaliatory Operation True Promise 4 featuring deployment of a large-scale reprisal involving multiple missile systems targeting locations across the occupied territories and US military positions in the region.