They have just stated that they're suspending nuclear and ballistic missile testing...which they had done in practice for months.
THE FACT THAT TRUMP DOES NOT KNOW THE DIFFERENCE SHOULD CONCERN EVERY AMERICAN AND OUR ALLIES.
In suggesting that North Korea has made large concessions prior to this summit...HE'S PUT US IN A WEAK POSITION AT THE NEGOTATIATING TABLE.
They can now claim they've already taken drastic action.