If it's proven that they have in fact conducted a nuclear test, does that really change the situation?

NPR: Diplomat Offers Analysis of North Korea Test

Mr Abe said both countries had to take a tough stance on North Korea, which recently conducted a third nuclear test.

BBC: Obama and Shinzo Abe affirm US-Japan security alliance

Though it was under Mr. Sharif, in 1998, that Pakistan caught up with its neighbor and conducted its first test of a nuclear weapon, the man who is poised to lead Pakistan's next government is making rapprochement with India a cornerstone of his policy.

WSJ: Pakistan's Newly Elected Leader Seeks Better India Ties