The U.S. has hinted at military action against Maduro, leading to increased tensions after a recent strike that killed six. Legal and ethical concerns regarding these operations are rising.

Democratic and Republican U.S. senators announced plans on Friday to force a vote on a resolution to prevent military action against Venezuela without congressional authorization, seeking to rein in President Donald Trump's escalation of pressure on President Nicolas Maduro's government.

In less than a week, President Donald Trump has threatened to attack Venezuela using ground troops, confirmed ongoing covert operations inside the country, and ordered bombers capable of dropping nuclear weapons to fly in circles off its coast in what appears to be an unprecedented show of force intended to pressure the Venezuelan president to step down.