President Donald Trump signed an executive order Monday, authorizing new sanctions on Iranian officials and entities, and those that buy or sell arms to them, because of the "snapped back" United Nations sanctions.

The rest of the world does not consider those U.N. sanctions in place, but part of Trump's cabinet assembled Monday to assert that the U.S. will enforce them.

"We don't need a cheering section to validate our moral compass. We do not find comfort based solely on numbers, particularly when the majority has found themselves in an uncomfortable position of underwriting terrorism, chaos and conflict. We refuse to be members of that club," said U.S. Ambassador to the U.N. Kelly Craft.

The move has been rejected by the United Nations and U.S. allies, like France, Germany and the United Kingdom, and adversaries, such as China and Russia -- who all remain part of the Iran nuclear deal -- setting up a showdown for when a U.N. embargo on conventional weapons expires next month.