Ukrainian President Volodymyr Zelenskyy this week said that if the U.S. cannot guarantee a quick path toward NATO membership, then there are alternative security options Kyiv would accept: nuclear weapons. 

But don’t think the United States is eager to agree to those terms. 

“The chance of them getting their nuclear weapons back is somewhere between slim and none,” retired Lt. General Keith Kellogg, special envoy to Ukraine and Russia, told Fox News Digital. “Let’s be honest about it, we both know that’s not going to happen.”

In 1994, following the collapse of the Soviet Union, Ukraine agreed to give Russia its nuclear arms in exchange for reassurances from Russia, the U.S. and the U.K. that its sovereignty and independence would be respected – a treaty Moscow has violated with its repeated invasions – and in an interview on Tuesday, Zelenskyy argued that Ukraine should be given its arms “back” if a timely NATO membership is off the table.

“As you develop the plans to end this carnage, you have to make sure that you’ve got the feel of everybody in play,” Kellogg said. “Once we get to have these face-to-face discussions, then you can really kind of work … on concessions.”

NATO Secretary General Mark Rutte last month urged member nations to increase their support for Ukraine, an issue he said is vastly important when it comes to bolstering NATO deterrence in the face of the Russia, China, North Korea, Iran bloc.

Then-Republican presidential nominee Donald Trump meets Ukrainian President Volodymyr Zelenskyy at Trump Tower in New York on Sept. 27, 2024. (AP Photo/Julia Demaree Nikhinson)

“If we get a bad deal, it would only mean that we will see the president of Russia high-fiving with the leaders of North Korea, Iran and China, and we cannot accept that,” Rutte said. “That will be geopolitically a big, a big mistake.”

Rutte has urged NATO nations to ramp up defense spending and warned that if Russia comes out on top in this war, it will cost NATO allies “trillions” not “billions.”

Kellogg will also press NATO allies to increase defense spending and, as directed by Trump, to start shouldering the burden of the war in Ukraine.