4. The Russian Federation, the United Kingdom of Great Britain and Northern Ireland and the United States of America reaffirm their determination to seek immediate steps by the United Nations Security Council to assist Ukraine, as a non-nuclear state in the Nuclear Non-Proliferation Treaty, should Ukraine be the victim of an attack or attack using nuclear weapons. At the time, Washington`s trilateral declaration was considered a great success, eliminating hundreds of ICBMs and bombers and nearly 2,000 strategic nuclear warheads designed and built to hit the United States. In the face of Russian aggression, it is not surprising that many in Ukraine are now questioning the value of the trilateral declaration and the Budapest Memorandum. They claim that if Ukraine had at least maintained some nuclear weapons, Russia would never have taken a step in Crimea and the Donbass. The Nuclear Disarmament Resources Collection contains information and analysis of proposals on the disarmament of nuclear weapons and progress made around the world, including detailed reports on the progress made in the field of disarmament in countries that possess or host other countries` nuclear weapons on their territory. The elimination of strategic nuclear warheads, intercontinental missiles (ICBMs) and strategic bombers in Ukraine has been a big deal for Washington. ICMs and bombers carried monstrously sized warheads — all designed, built and used to attack America. The SS-19 and SS-24 ICBM warheads in Ukraine had explosive yields of 400 to 550 kilotons each, 27 to 37 times the size of the atomic bomb that ravaged Hiroshima. The 1,900 strategic nuclear warheads — more than six times the number of nuclear warheads that China currently possesses — could have destroyed three times any American city with a population of more than 50,000, with warheads.
In February 1993, Ukraine was the only signatory not to have ratified the START-Lisbonne package. Kravchuk submitted it to the Rada in November 1992, but the vote was postponed several times. When Ukraine was criticized as a setback in its commitments, the lack of progress on denuclearization placed Kiev in total international isolation. Without allies and threatened by Russia, Ukraine has doubled its insistence on nuclear property. From property to renunciationThe claim for nuclear property crystallized in early 1993 as the centre of gravity of Ukraine`s position. The Ukrainian Foreign Ministry said the Russian-Ukrainian nuclear negotiations were deadlocked due to differences in principle over the possession and status of strategic forces on Ukrainian territory.  In July of this year, the Rada adopted a number of foreign policy principles, stating that “Ukraine has become the owner of nuclear weapons as a result of historical events.”  Surprisingly, Russia interpreted this as a unilateral declaration of nuclear status.  Today, January 14 marks the 25th anniversary of the trilateral declaration. Signed in Moscow by President Bill Clinton, Russian President Boris Yeltsin and Ukrainian President Leonid Kravchuk, the declaration set out the conditions under which Ukraine agreed to eliminate the large arsenal of former Soviet strategic weapons that remained on its territory after the collapse of the Soviet Union. Despite Russia`s requested annexation of Crimea, which the UN General Assembly rejected as invalid , the Ukrainian government reaffirmed in 2014 its 1994 decision to accede to the Nuclear Non-Proliferation Treaty as a non-nuclear state.
 Ukraine signed the Lisbon Protocol on 23 May 1992.