The war in Iran has exposed the need to mount a defense against foreign influence campaigns, officials and experts say.

The United States and Israel have done significant damage to Iran’s military capabilities. But Iran still fires missiles, has nuclear material and coordinates with militias in the region.

© Arash Khamooshi for The New York Times

The war in Iran has exposed the need to mount a defense against foreign influence campaigns, officials and experts say.

© Arash Khamooshi for The New York Times

Any decision by Iran to keep fighting would complicate President Trump’s stated goal of trying to end the war within weeks.

© Arash Khamooshi for The New York Times

The White House said the president would address the nation about Iran on Wednesday evening.

© Tierney L. Cross/The New York Times

President Trump and his aides have made contradictory statements on whether the United States and Israel have transformed the Iranian government through violence.

© Eric Lee for The New York Times

The urgent instructions at the Trump administration’s behest to gather and relay the files on Representative Eric Swalwell have alarmed some career law enforcement officials.

The Trump administration said the Middle East would “recede” in importance as the China challenge took priority. But the president started the war in Iran.

The package worth billions of dollars and endorsed by lawmakers is stalled at the State Department as the U.S. and China plan an April summit.

U.S. intelligence analysts say that Xi Jinping, China’s leader, has a remarkable level of fear. He has carried out mass purges, and surprised many by removing his top general.

U.S. and European officials say they are unaware of any intelligence that shows China and Russia are endangering the island, which is protected by the NATO security umbrella.