The Trump administration is preparing for the possible collapse of Cuba’s communist government as early as this summer, while war-gaming military response plans in case the island descends into chaos, Axios reported Thursday, citing U.S. officials.

Trump has not authorized an invasion and prefers a peaceful transition, according to the report. But his administration is escalating sanctions and other pressure tools against Havana in what one senior official described as “accelerationism.” The official told Axios: “But we don’t want to kill off the regime just yet. There’s a method to this. It’s in stages.”

U.S. Southern Command held a multiagency tabletop exercise last month to prepare for possible military action in Cuba, Axios reported. One official said “everything is on the table, but no invasion is planned or imminent,” adding that Washington was preparing for unrest if power shortages, food spoilage and summer heat trigger mass protests.

The pressure campaign has already moved into public view. Trump signed a May 1 executive order targeting companies doing business with GAESA, Cuba’s military-controlled business empire. Secretary of State Marco Rubio later announced sanctions against the group, while the Justice Department unsealed a federal murder indictment against Raúl Castro over the 1996 Brothers to the Rescue shootdown.

Cuba has accused Washington of trying to justify intervention. Foreign Minister Bruno Rodríguez Parrilla said Rubio was manipulating public opinion to support military aggression, while U.S. officials say the campaign is aimed at isolating the regime and directing assistance to Cubans through churches and charities instead of Havana.