The National Nuclear Security Administration of the US Department of Energy said that the head of the administration that oversees the stockpile of nuclear weapons has resigned from her post without explanation.

And Lisa Gordon Hagerty has resigned as head of the Nuclear Security Administration, a semi-independent branch of the US administration.

The administration said in a statement that William Buckles was now holding the vacant position, acting.

The action drew criticism from Senator James Einhoff, the Republican chairman of the Armed Services Committee, who praised Gordon Hagerty and harshly criticized Energy Secretary Dan Brollett.

"The Minister of Energy actually requested her resignation during this time, proving that he does not know what he is doing on national security matters, and there is a complete lack of respect for the semi-independent nature of the National Nuclear Security Administration," Einhoff said in a statement.

Gordon Hagerty is the first woman to head the National Nuclear Security Administration in early 2018.

This administration oversees the development and maintenance of nuclear weapons, but not the launch systems that the Department of Defense administers.

Defense News was the first to report the resignation of Gordon Hagerty.

She said she had a falling out with Prolet over her management budget.

Banning the "nuclear"

The United States is the first country to enter the nuclear club, and it has a huge stockpile of advanced nuclear weapons.

And at the end of last month, the United Nations announced that the Treaty on the Prohibition of Nuclear Weapons would enter into force on January 22, after the fiftieth country ratified the treaty, which major military powers such as America, China, Russia, France and Britain have not joined.

NATO refuses to support the UN treaty, saying it contradicts the alliance's nuclear deterrence policy and will not enhance the security of any country.

The countries that signed the treaty pledged not to under any circumstances "develop, test, produce, manufacture, possess, possess or store nuclear weapons or other nuclear explosive devices" according to the text of the treaty.