According to The Guardian
Donald Trump’s defence secretary has warned North Korea it would face an “effective and overwhelming” response from the US if it used nuclear weapons.
Speaking in South Korea on Friday, James Mattis reassured the government in Seoul that the US would retaliate should its northern neighbour launch any attack.
Mattis, the first senior figure in the new US administration to make an overseas visit, is expected to offer similar security reassurances to Japan despite a suggestion by Trump during the election campaign that Washington’s commitment to its closest ally in the region could weaken unless Tokyo paid more towards the cost of hosting American troops.
“Any attack on the United States, or our allies, will be defeated, and any use of nuclear weapons would be met with a response that would be effective and overwhelming,” Mattis said in Seoul before leaving for Japan, where he will meet the prime minister, Shinzo Abe, and the country’s foreign and defence ministers.