Peru Joins a US Security Coalition That Nobody Has Signed
Key Facts
- — What happened. The United States announced Peru’s entry into a regional anti-cartel coalition on 8 September.
- — How it was announced. Marco Rubio said it in a column for the Lima daily El Comercio, before he arrived.
- — The catch. It is a political declaration, not a treaty. Peru signed no instrument.
- — What Peru got earlier. Washington designated Peru a major non-NATO ally in January, by presidential determination.
- — Who is objecting. Members of Congress want the foreign minister to appear and explain the entry.
- — What comes next. Rubio was due to meet President Keiko Fujimori in Lima on 10 September.
Peru’s entry into a United States security coalition was announced in a newspaper column. There is no treaty behind it, and Congress noticed.

The substance here is real, and so is the gap between how it was announced and what it commits anyone to. Both belong in the same story.
What the Americas Shield Is
The Escudo de las Américas, or Americas Shield, is a United States-led coalition against transnational organised crime.
President Donald Trump presented it at a summit in Miami on 7 March 2026. It works through requests for assistance between members.
The practical content is intelligence sharing and military and police cooperation. There is no standing force.
Members before Peru included Argentina, Bolivia, Chile, Costa Rica, the Dominican Republic and Ecuador.
El Salvador, Guyana, Honduras, Panama, Paraguay and Trinidad and Tobago are also in it. Colombia joined this week.
Counts differ between outlets. Around fifteen countries is the safest description.
How Peru’s Entry Was Announced
Secretary of State Marco Rubio announced it in a column published by El Comercio in Lima on 8 September.
That was the day before he arrived in the country. Foreign Minister Carlos Espá defended the entry the same day.
No signed bilateral instrument for Peru’s accession has been published. Nothing was ratified.
One Peruvian security analyst put it plainly. There are no binding conditions because it is not yet an international treaty.
So the correct verb is announced, not signed. Peru accepted an invitation rather than executing a document.
Congress Wants an Explanation
Members of Peru’s Congress spent 8 September debating whether the foreign minister must appear before them.
The subject is the incorporation itself. That debate is itself evidence that no ratified instrument exists.
Peru’s constitution requires congressional approval for treaties on certain subjects. A political declaration avoids that step.
Whether the coalition should have gone through Congress is now the domestic argument.
The Major Non-NATO Ally Designation
This is separate and it is older. President Trump designated Peru a major non-NATO ally on 14 January 2026.
The instrument is Presidential Determination 2026-04, published in the Federal Register on 23 January.
It confers eligibility for benefits under US foreign assistance and arms export law. That covers excess defence articles and cooperative research.
It also allows priority delivery, loans of equipment for testing, and faster export licensing.
What it does not do is guarantee anything. There is no mutual defence clause and no obligation on the United States to defend Peru.
Rubio’s Column and China’s Answer
The same column argued that projects backed by the Chinese Communist Party bypass Peru’s legal frameworks.
Rubio wrote that they threaten transparency and data security. He accused outside actors of predatory practices.
He listed opaque contracts, unsustainable debt, exploitation of workers and environmental destruction.
The Chinese embassy in Lima answered within a day. It said Chinese investment in Peru is transparent and in accordance with the law.
A foreign ministry spokesman added that Latin America and the Caribbean are nobody’s back yard.
The embassy also noted that China has been Peru’s largest trading partner for twelve years.
Rubio published versions of the column in Colombian and Ecuadorian papers too. It was a regional piece, not a Peru-only message.
The Iran Break, and What Tehran Said Back
Peru broke diplomatic relations with Iran on 1 September, through a formal foreign ministry communiqué.
The stated grounds were repression of peaceful protest, press restrictions, discrimination against women and girls, and persecution of opponents.
It also cited Iran’s disruption of commerce in the Strait of Hormuz and obstruction of nuclear inspections.
Iran’s foreign ministry spokesman answered on 7 September. He called it an empty gesture.
His words were that there was no relationship that could be broken in the first place. Neither country had an operating embassy.
A common English rendering has him saying there was no relationship worth preserving. That is close but not what he said.
The Trip, and What Has Not Happened Yet
Rubio’s regional tour ran from 8 to 10 September, covering Colombia, Ecuador and Peru.
He arrived in Lima on 9 September. His meeting with President Keiko Fujimori was scheduled for the following morning.
The agenda includes El Niño cooperation, organised crime, defence, investment and trade. Nothing has been signed in Peru.
Anyone reporting agreements from the Peru leg is reporting an expectation rather than an outcome.
Keiko Fujimori took office on 28 July 2026. Her foreign minister is Carlos Espá, and Peru has had four foreign ministers inside a year.
Frequently Asked Questions
Did Peru sign a security treaty with the United States?
No. The Americas Shield is a political declaration rather than a treaty, and no signed accession instrument for Peru has been published.
What does major non-NATO ally status give Peru?
Eligibility for benefits under US foreign assistance and arms export law, such as priority delivery and faster export licences. It carries no defence guarantee.
Why is Peru’s Congress involved?
Members want the foreign minister to appear and explain the incorporation, since a political declaration sidesteps the treaty approval process.
Did Peru really break relations with Iran?
Yes, on 1 September 2026. Iran’s foreign ministry called it an empty gesture, saying there was no relationship that could be broken.
Sources: El Comercio, Rubio’s column, Infobae Peru, what the Americas Shield is, RPP, the member countries, Federal Register, the major non-NATO ally determination, Peru’s foreign ministry, the break with Iran, El Diario, Iran’s response, Infobae, China’s reply from Lima, El Comercio, the Fujimori meeting
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