President Trump released several tweets Sunday morning regarding the ongoing threat from North Korea and the most recent nuclear test the nation has conducted.

The president also said the U.S. is considering ending all trade activities with nations that work with North Korea.

Here is a list of some of the top trading partners with North Korea.

As he was exiting church on Sunday morning, he said “we’ll see” to a question from a reporter about whether he would initiate an attack on the rogue nation.

Former U.N. ambassador John Bolton puts the defiance of North Korea in historical perspective.