Yes, there is a Pakistan, but it is more interested in the Kashmir region and the duel here is with India.

Israel first built a nuclear weapon in the 1960s, but the Israelis maintained a policy of "ambiguity". One of their nuclear technicians told the British press details in 1986.

Israel refused to sign the Nuclear Nonproliferation Treaty (along with India and Pakistan, and North Korea.

It is believed that Israel has 75, but some estimates are as high as 400, nuclear warheads (various articles, Federation of American Scientists).