US detains sister of Cuban military conglomerate chief

Trump, Rubio hint at possible US military action in Cuba amid doubts over diplomacy

Washington’s top diplomat says it’s unlikely deal over disputes will be reached ‘given who we’re dealing with,’ day after US announced charges on Cuba’s former ruler Raul Castro

A vendor sells caps supporting Cuba and US President Donald Trump Trump, as a small group of Cubans gather to hold signs and wave flags hours after federal prosecutors announced charges against former Cuban President Raul Castro, May 20, 2026, in Miami, Florida. (AP Photo/Rebecca Blackwell)
A vendor sells caps supporting Cuba and US President Donald Trump Trump, as a small group of Cubans gather to hold signs and wave flags hours after federal prosecutors announced charges against former Cuban President Raul Castro, May 20, 2026, in Miami, Florida. (AP Photo/Rebecca Blackwell)

WASHINGTON (AP) — US President Donald Trump and America’s top diplomat on Thursday again raised the specter of military intervention in Cuba, a renewed threat that takes on greater weight a day after the administration announced criminal charges against the island’s former leader, Raúl Castro.

Trump said previous US presidents have considered intervening in Cuba for decades, but that “it looks like I’ll be the one that does it.”

“Other presidents have looked at this for 50, 60 years, doing something,” Trump told reporters when asked about Cuba during an environmental event in the Oval Office. “And, it looks like I’ll be the one that does it. So, I would be happy to do it.”

Secretary of State Marco Rubio told reporters separately that Cuba has been a national security threat for years because of its ties to US adversaries and that Trump is intent on addressing it.

Rubio, the son of Cuban immigrants who has long taken a hard line against Cuba’s socialist leadership, said the Trump administration wants to resolve differences with Cuba peacefully but is doubtful the US can reach a diplomatic resolution with the island’s current government.

Trump’s “preference is always a negotiated agreement that’s peaceful. That’s always our preference. That remains our preference with Cuba,” Rubio said in Miami before boarding a plane to attend a NATO meeting in Sweden and then visit India.

US President Donald Trump attends an event about loosening a federal refrigerant rule, in the Oval Office at the White House, May 21, 2026, in Washington. (AP Photo/Jacquelyn Martin)

“I’m just being honest with you, you know, the likelihood of that happening, given who we’re dealing with right now, is not high,” he said.

Top Trump aides — including Rubio, CIA chief John Ratcliffe, and other senior national security officials — have met with Cuban officials in recent months to explore possible improvements in relations. But the US side has come away unimpressed from those talks, leading to even more sanctions imposed on the Cuban government in the past week.

Over the years, Cuba has gotten used to “buying time and waiting us out,” Rubio said. “They’re not going to be able to wait us out or buy time. We’re very serious, we’re very focused.”

When asked whether the US would use force in Cuba to change the island’s political system, Rubio repeated that a diplomatic settlement was preferred but noted that “the president always has the option to do whatever it takes to support and protect the national interest.”

He pushed back on a reporter’s suggestion that it sounded like “nation-building,” insisting it was about addressing a national security risk.

New threats follow US announcement of charges against Castro

Federal prosecutors on Wednesday unveiled an indictment that accuses Castro of ordering the shootdown in 1996 of civilian planes flown by Miami-based exiles.

The charges, which were secretly filed by a grand jury in April, included murder and destruction of an airplane.

Raul Castro, right, watches the May Day parade accompanied by Cuba’s President Miguel Diaz-Canel, second left, and Castro’s grandson, Raul Guillermo Rodriguez Castro, center, at Revolution Square in Havana, Cuba, May 1, 2025. (AP Photo/Ramon Espinosa)

Cuban President Miguel Díaz-Canel has condemned the indictment as a political stunt that sought only to “justify the folly of a military aggression against Cuba.”

The Castro indictment has led many to believe that the Trump administration is following the same playbook it did when it captured then-Venezuelan President Nicolás Maduro in a military operation in early January. Maduro, who has been imprisoned in the US since his seizure, faces federal drug trafficking charges and has pleaded not guilty.

The US also arrested Adys Lastres Morera, the sister of the executive president of GAESA, a sprawling conglomerate of military-run businesses, Rubio said on Thursday.

Morera, who entered the United States as a lawful permanent resident in 2023, is now in the custody of US Immigration and Customs Enforcement pending removal proceedings, according to a separate statement from ICE.

Morera’s presence poses a threat to the United States and undermines American foreign policy interests, the statement said.

Cuba’s leadership rarely talks publicly about GAESA, which stands for Grupo de Administración Empresarial — or “business administration group.”

It has long held that such discretion is necessary to confront a US trade and financial blockade that severely complicates the island’s business with the outside world.

Reuters was not immediately able to reach out to representatives of Morera for comment.

US Secretary of State Marco Rubio speaks to the press before boarding his plane at Homestead Air Reserve Base on May 21, 2026 in Homestead, Florida. (Julia Demaree Nikhinson / Pool via AFP)

The US military touted the arrival of the USS Nimitz aircraft carrier and accompanying ships to the Caribbean Sea on Wednesday. US Southern Command said the ships are taking part in maritime exercises with partners in Latin America that began in March.

Rubio would not discuss how the US might move to implement the indictment against Castro, who turns 95 next month.

Trump has been threatening military action in Cuba ever since ousting Maduro and then ordering an energy blockade that choked off fuel shipments to Cuba. That has led to severe blackouts, food shortages, and an economic collapse across the island.

Trump has ratcheted up talk of regime change in Cuba after pledging to conduct a “friendly takeover” of the country if its leadership did not open its economy to American investment and kick out US adversaries.

On Thursday, Rubio said Cuba poses a serious national security threat to America because of its security and intelligence ties with China and Russia and friendly relations with US foes in Latin America.

China opposes US sanctions and pressure on Cuba, a Chinese Foreign Ministry spokesperson, Guo Jiakun, said Thursday.

“China firmly supports Cuba in safeguarding its national sovereignty and national dignity and opposes external interference,” Guo added.

Reuters contributed to this report.

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