With President Donald Trump showing little interest in sitting down at the negotiating table with North Korea—regarded by many in the U.S. and around the world as the best method for deterring nuclear development by Kim Jong-un’s government—Hawaiian officials are being forced to take precautions to make sure residents know what to do in the event of a nuclear attack.

At the beginning of next month, the state will begin testing the missile warning system it used during World War II and last tested during the Cold War.

“Hawaii is a likely target because we’re closer to North Korea than most of the continental United States,” said Vern Miyagi, administrator of the state’s Emergency Management Agency. “As we track the news and see tests, both missile launches and nuclear tests, it’s the elephant in the room. We can’t ignore it. People of Hawaii need to know what Hawaii is doing in preparation for this.”

The agency is reinstating the warning system amid Trump’s ongoing feud with Kim’s regime. North Korea ran nuclear tests and launched several test missiles into the Pacific Ocean earlier this year, and Trump responded to the tests with bellicose threats of “fire and fury” and a speech at the United Nations General Assembly in which he declared he would “totally destroy” the isolated country of 25 million people should Kim continue to develop its nuclear program.

Earlier this month, the White House returned North Korea to its list of state sponsors of terrorism, further angering Kim’s government and leading critics to worry that the country would respond with more nuclear tests.