The full list of humiliations Europe has endured since Donald Trump returned to the White House makes for grim reading. But Washington’s adversarial approach to its allies undermines its own power base.
Rym Momtaz
{
"authors": [],
"type": "pressRelease",
"centerAffiliationAll": "dc",
"centers": [
"Carnegie Endowment for International Peace"
],
"collections": [
"U.S. Nuclear Policy"
],
"englishNewsletterAll": "ctw",
"nonEnglishNewsletterAll": "",
"primaryCenter": "Carnegie Endowment for International Peace",
"programAffiliation": "NPP",
"programs": [
"Nuclear Policy",
"Middle East"
],
"projects": [],
"regions": [
"North America",
"United States",
"Middle East",
"Iran"
],
"topics": [
"Foreign Policy",
"Nuclear Policy",
"Nuclear Energy"
]
}REQUIRED IMAGE
A new IAEA report says that Iran continues to defy UN Security Council resolutions and enrich uranium while refusing to answer IAEA questions regarding possible weaponization activities. If the United States is to induce Iran to halt enrichment activities, both the costs of defiance and the benefits of cooperation must be greater, warns George Perkovich in a new policy brief.

WASHINGTON, Sept 15—A new IAEA report says that Iran continues to defy UN Security Council resolutions and enrich uranium while refusing to answer IAEA questions regarding possible weaponization activities. If the United States is to induce Iran to halt enrichment activities, both the costs of defiance and the benefits of cooperation must be greater, warns George Perkovich in a new policy brief.
Perkovich argues that the United States should pursue a revised strategy showing Iran’s leaders that the more they advance enrichment capabilities, the less valuable cessation of those activities becomes for negotiating incentives packages.
A three-step approach for the next U.S. president:
Anticipating the September IAEA Report, Perkovich notes:
“An underappreciated factor in Tehran’s unwillingness to answer the IAEA’s questions is that Iranian leaders must wonder what would happen if they did ‘come clean,’ perhaps acknowledging that past nuclear activities were related to acquiring at least the option to produce nuclear weapons. The fact that neither the United States nor the Security Council has told Iran how it would react if Iran admitted to past nuclear weaponization violations may pose a genuine quandary in Iran. The UN Security Council could clarify that Iranian admission of past weaponization activities, coupled with willingness to accept that the NPT violation required ‘restitution,’ would not necessarily lead to further sanctions or punitive sanctions.”
###

Carnegie does not take institutional positions on public policy issues; the views represented herein are those of the author(s) and do not necessarily reflect the views of Carnegie, its staff, or its trustees.
The full list of humiliations Europe has endured since Donald Trump returned to the White House makes for grim reading. But Washington’s adversarial approach to its allies undermines its own power base.
Rym Momtaz
The U.S.-Iran war has crossed a dangerous threshold: water infrastructure in the Gulf is now a target. Ecological statecraft is no longer peripheral to security, it's part of its foundations.
Olivia Lazard, Ali Bin Shahid
The closure of the Strait of Hormuz has triggered a global energy crisis, but Europe is stuck in reaction mode. Without more strategic foresight, the EU will remain dependent on fossil fuels and will never be truly secure.
Milo McBride, Pauline Gerard
Debate is heating up on how Turkey could be integrated into a common European defense framework. Commercial and industrial deals offer a better chance at alignment than sweeping political efforts.
Marc Pierini
After spending much of 2025 trying to placate Donald Trump, some European leaders are starting to change posture. But is even a hostile Washington still so important to Europe that the U.S. president’s outbursts are worth putting up with?
Rym Momtaz, ed.