The U.S. military may be preparing for a potential Cuba operation, according to multiple reports. The information was leaked to USA Today from two sources who were not authorized to speak publicly. The news comes just over a month after President Donald Trump announced that Cuba's regime was at "the end of the line" at the Shield of the Americas Summit. Open source intelligence accounts on X also documented the flight path of a drone that appeared to be spying on the communist nation. The United States has enforced a de facto oil blockade on Cuba since the capture of deposed Venezuelan dictator Nicolas Maduro. The grandson of former Cuban leader Raúl Castro attempted to send a letter to President Trump, bypassing diplomatic channels, in an attempt to start negotiations between Trump and Castro.