MADISON, Wis. (AP) — Wisconsin Gov. Scott Walker says "the issue of North Korea is on the minds of just about everyone we talk to" on a trade mission he's leading to Japan and South Korea.

Walker held a conference call with reporters on Wednesday from South Korea. He says business and government leaders he's spoken with in both countries view North Korea as an "existential threat."

Walker says he has reiterated in public and private comments the United States' support for its allies in the region.

He also says those he met in both Japan and South Korea are also concerned that there continues to be free trade with the Unites States.

Walker says the deal Wisconsin reached with Foxconn Technology Group to build a flat-screen plant in the state is also generating attention.