The United Nations General Assembly called on Israel by a vote of 174-6 to adhere to the NPT (Nuclear Non Proliferation Treaty) without delay. Israel refused to join the NPT and open itself up to international inspectors.
Israel is not a signatory to the 1970 Nuclear Non Proliferation Treaty, the main objective of which is to prevent the spread of nuclear weapons and weapons technology. Despite near-universal acknowledgement that Tel Aviv maintains a powerful nuclear arsenal, Israeli officials promote a position claiming their government will “not be the first country to introduce weapons into the Middle East.”
Estimates of Israel’s nuclear capacity estimate that they hold in the region of 400 nuclear warheads with various methods to deliver them. Israel claims it maintains ‘nuclear opacity’ which it cites as a deterrent against neighbouring countries.
It is of no surprise that the USA has very little to say about Israel’s nuclear capacity, but plenty to say about their suspicions that Iran has nuclear capability.