On Tuesday, U.S. Secretary of State Marco Rubio held a significant meeting with Paraguay's Vice President, Pedro Alliana, at the State Department in Washington D.C. This encounter culminated in the signing of a memorandum of understanding focused on strategic cooperation in civil nuclear matters, as reported by spokesperson Tommy Pigott.
The bilateral discussions emphasized enhancing security collaboration to combat transnational criminal and terrorist threats, with a particular focus on shared regional challenges, notably the situation in Venezuela.
Rubio expressed his appreciation to Alliana for Paraguay's ongoing leadership in addressing these regional challenges, including Venezuela, and commended the Paraguayan Vice President's willingness to advance these priorities.
Strengthening Nuclear Cooperation
Following their discussions, Rubio and Paraguayan Foreign Minister Rubén Ramírez formalized the memorandum on strategic cooperation in civil nuclear energy. The State Department hailed this agreement as a testament to the "historic expansion of ties between the U.S. and Paraguay."
The document underscores both governments' commitment to advancing civil nuclear energy projects under the highest standards of safety, security, and non-proliferation.
A Flourishing Bilateral Relationship
Alliana expressed enthusiasm about the meeting, stating, "The bilateral relationship with the United States is experiencing an extraordinary moment," as noted by Infobae. On social media, he described the meeting as "an important and pleasant encounter," where they discussed the "broad bilateral agenda" to "reaffirm the strategic alliance based on democratic principles and values."
This meeting is part of a series of accelerated diplomatic engagements between Washington and Asunción since 2025. In August of that year, the countries signed a third-country safe agreement, allowing asylum seekers rejected in the U.S. to have their cases reviewed in Paraguay. In February 2026, both governments signed a declaration of cooperation in security and defense, focusing on drug trafficking and transnational crime. Later that year, in June, Rubio met with President Santiago Peña during the Soccer World Cup in the United States.
Regional Challenges and Alliances
Paraguay is regarded as one of Washington's closest allies in South America. The nation severed diplomatic ties with Venezuela in January 2019 and maintains a critical stance against the Chavista regime, aligning it with the Trump administration's pressure policies in the region.
The Triple Frontier area, where Paraguay, Argentina, and Brazil meet, remains a concern for the United States due to transnational organized crime and drug trafficking, with illicit flows estimated between $12 and $15 billion annually, according to 2026 security reports.
The civil nuclear agreement signed on Tuesday marks the most concrete step yet in expanding the bilateral alliance and paves the way for peaceful atomic energy projects under international oversight.
Understanding the U.S.-Paraguay Nuclear Agreement
What is the significance of the U.S.-Paraguay nuclear cooperation agreement?
The agreement represents a major step in strengthening bilateral ties and advancing civil nuclear projects under high standards of safety, security, and non-proliferation.
How does the U.S. view Paraguay in terms of regional alliances?
The U.S. sees Paraguay as a key ally in South America, particularly in its critical stance against the Venezuelan regime and its cooperation in security matters.
What other agreements have the U.S. and Paraguay signed in recent years?
Since 2025, the two nations have signed a third-country safe agreement, a declaration of cooperation in security and defense, and have engaged in various diplomatic meetings to bolster their alliance.