The decision comes less than two weeks ahead of a planned summit between U.S. President Trump and his Russian counterpart Vladimir Putin.
Mr. Trump's political opponents in the USA will be looking for any sign that the president goes easy on Mr. Putin, which they would say bolster allegations of Trump campaign collusion with Moscow to hack the 2016 presidential election.
"We're entering with our eyes wide open, but peace is always worth the effort", Huntsman said.
The prospect of Trump and Putin meeting alone has raised concern among members of the USA national security community, some of whom have fretted that Putin, who has served as either president or prime minister since 2000, will use the meeting to gain leverage over the U.S.
Mr. Trump and Mr. Putin will meet July 15 in Helsinki, Finland.
Donald Trump prepares more China tariffs
He also upped his threat to go further - saying he'd target up to US$500 billion of Chinese goods if they retaliate. But China is not the only country to find itself in Washington's crosshairs lately when it comes to trade.
Trump's trip will begin Tuesday in Brussels, where he'll participate in the North Atlantic Treaty Organisation summit, before traveling to the United Kingdom for a meeting with British Prime Minister Theresa May.
An extension of the Strategic Arms Reduction Treaty (START) for another five years may be on the agenda during the talks between Trump and Putin, a senior USA administration official said, according to Reuters.
As previously reported "FACTS" before the United States presidential Advisor for national security John Bolton said that the upcoming meeting trump and Putin could improve relations between the two countries, and one of the topics at the meeting may be a possible return of Russian Federation to the Big eight.
Separately, U.S. Representative to NATO Kay Bailey Hutchison told reporters Thursday that the alliance is moving forward together, and "everyone has the same goal, and that is a strong deterrent and an alliance that is unified" against threats like Russian Federation and China.
The leaders are also likely to discuss New START, under which both nations cut their deployed strategic nuclear warheads to no more than 1,550, the lowest level in decades.