The rapid U.S. military buildup in the southern Caribbean Sea culminated this week with a deadly strike against a drug vessel that the Trump administration said had departed from Venezuela.

U.S. officials said the attack on a speedboat on Tuesday killed 11 drug traffickers. Defense Secretary Pete Hegseth and Secretary of State Marco Rubio both said the military would carry out more strikes in the coming weeks as part of a counternarcotics and counterterrorism campaign.

But on Thursday, two armed Venezuelan F-16 fighter jets buzzed a Navy guided-missile destroyer in the region in a show of force, dialing up tensions between Washington and the government of President Nicolás Maduro of Venezuela.

In response, the Pentagon dispatched 10 F-35 stealth fighters to Puerto Rico on Friday to deter more Venezuelan flyovers.

Here is a look at how the United States and Venezuela got to this point, and what military action might come next.

Why is the U.S. sending warships and surveillance planes to the Caribbean?

President Trump signed a still-secret directive in July ordering the Pentagon to use military force against some Latin American drug cartels that his administration has labeled “terrorist” organizations.