President-elect Donald Trump tapped Waltz, a Florida congressman and the first Green Beret to serve in Congress, to be his national security adviser in the upcoming administration. This was Waltz’s first television appearance since being picked, though Waltz is currently the member of Congress with the most appearances on Fox News.

The former Green Beret and three-term congressman from Florida has established himself as a hawkish Republican voice on matters of national security.

Florida congressman Mike Waltz, who is set to become national security advisor to newly elected US President Donald Trump, described Russia's war against Ukraine as a "meat grinder" and compared it to the trench warfare of World War I.

Trump's top security advisor called for an end to the escalation of the war between Ukraine and Russia, and for both parties to come to the negotiating table.