In 2024, Iran, under Supreme Leader Ali Khamenei’s leadership, thwarted decades of U.S. pressure and emerged from years of isolation largely by aligning itself with Russia and China…Iran’s economy remains battered by U.S. sanctions, but oil sales to China and weapons deals with Russia have offered financial and diplomatic lifelines…Today, Tehran poses a greater threat to American allies and interests in the Middle East than at any point since the Islamic Republic was founded in 1979. 

Iran’s military footprint reaches wider and deeper than ever. Iranian-backed armed groups have hit Saudi oil facilities with missiles and paralyzed global shipping in the Red Sea. They have dominated politics in Iraq, Lebanon, Yemen and Syria, and launched the most devastating strike on Israel in decades, when Hamas attacked in October. Iran launched its first direct military attack from its soil on Israel in April 2024. It has also orchestrated attacks on opponents in Europe and beyond, Western officials say. 

“In many respects, Iran is stronger, more influential, more dangerous, more threatening than it was 45 years ago,” said Suzanne Maloney, director of the foreign-policy program at the Brookings Institution, who advised Democratic and Republican administrations on Iran policy. 

U.S. policy has at times unintentionally contributed to Iran’s strength. The 2003 toppling of Saddam Hussein removed a sworn enemy from Iran’s borders. Washington’s failure to stabilize postwar Iraq bolstered Tehran’s influence…

Excerpts from Sune Engel Rasmussen and Laurence Norman, How Iran Defied the U.S. to Become an International Power, WSJ, July 2, 2024