President of Ukraine Petro Poroshenko at the Nuclear Security Summit in Washington urged the nuclear states to provide efficient guarantees for the countries that do not have a nuclear arsenal, according to the presidential press service.

At the plenary session of the summit chaired by President of the United States Barack Obama Poroshenko noted that international cooperation remained a key factor of success of all common efforts. Petro Poroshenko praised the progress achieved since the first nuclear security summit in 2010.

"We must decide how to improve the security guarantees of the permanent members of the UN Security Council for those countries who do not have a nuclear arsenal," the president stressed.

The president noted Ukraine's unique decision to voluntarily give up the third biggest nuclear arsenal in the world in 1994. He emphasized that the security guarantees were a significant challenge for Ukraine and other non-nuclear states. Unfortunately, the guarantees under the Budapest Memorandum have not only turned out to be inefficient, but also have been violated by the nuclear state - Russia.

The head of state emphasized that the Kremlin placed elements of its nuclear potential in the occupied Crimea violating the non-proliferation regime. In addition, Ukraine has gained a unique experience in ensuring efficient physical protection of nuclear materials and objects from possible subversive actions.

The president praised the results of a trilateral initiative of Sweden, Norway and Ukraine on the enhancement of nuclear security and safety of nuclear power plants. He also noted a successful launch of the first nuclear facility of global significance "Source of Neutrons" in Ukraine. Poroshenko called those projects an example of efficient international cooperation in the sphere of nuclear security and WMD non-proliferation.