To solve the problem of North Korea: trump has convened an urgent meeting

In an emergency meeting that will be held on Wednesday, April 26, will be attended by all 100 members of the Senate and the Secretary of state Rex Tillerson and the Minister of defence James Mattis.
The White house also announced that on Monday, trump discussed the issue of "urgent problems in the field of security" posed by North Korea, and in a telephone conversation with German Chancellor Angela Merkel. In addition to Tillerson Secretary of state and the Pentagon chief of Mattis to senators will be made by the Director of National intelligence Dan Coates and head of the us General staff Joseph Dunford.
Note that the President himself, Donald trump has appealed to the UN Security Council, urging "finally solve" the problem of the DPRK.
"North Korea is a big problem for the whole world. And this problem should be finally solved. The current status quo in North Korea is unacceptable, and the Security Council needs to impose additional, more stringent sanctions to counter the North Korean nuclear programme and the programme for the production of ballistic missiles," - said Trump.