The Los Angeles area is home to the biggest diaspora of Iranians. The growing war between Iran and Israel has rattled this tight-knit community.

© Kendrick Brinson for The New York Times

The Los Angeles area is home to the biggest diaspora of Iranians. The growing war between Iran and Israel has rattled this tight-knit community.

© Kendrick Brinson for The New York Times

The conflict, the most intense fighting between the two countries in decades, has been met in the United States with feelings of “frustration and helplessness,” as well as heartbreak.

© Arash Khamooshi for The New York Times

Immigrants from the targeted countries said the ban would upend their lives. “I don’t understand why the president has to target us nonstop,” one Haitian asylum seeker said.

© Dave Sanders for The New York Times