US President Donald Trump vowed to stop 'transgender lunacy' and to "keep men out of women's sports" on Sunday.

President-elect Donald Trump pledged to "stop the transgender lunacy" on day one of his presidency,

"I will sign executive orders to end child sexual mutilation, get transgender out of the military and out of our elementary schools and middle schools and high schools," the President-elect said in Phoenix, Arizona.

He also vowed to "keep men out of women's sports," adding that "it will be the official policy of the United States government that there are only two genders, male and female."

Trump further promised immediate measures against "migrant crime," vowed to designate drug cartels as foreign terrorist organizations, and doubled down on his talk of restoring U.S. control of the Panama Canal.

 Trump appointed Indian-American entrepreneur Sriram Krishnan as senior policy advisor on Artificial Intelligence.

 In his speech, he said, "On January 20, the United States will turn the page forever on four long, horrible years of failure, incompetence, and national decline, and we will inaugurate a new era of peace, prosperity, and national greatness."

"I will end the war in Ukraine. I will stop the chaos in the Middle East, and I will prevent, I promise, World War III."