How to treat China's nuclear supply to Ukraine?

According to the recent joint statement of China and Ukraine on further deepening the strategic partnership, China promised unconditionally not to use or threaten to use nuclear weapons against Ukraine as a non-nuclear-weapon state, and to provide Ukraine with corresponding security guarantees in case of aggression or threat of such aggression.

It is an arrangement of the international nuclear non-proliferation system that nuclear countries provide security assurances to non-nuclear countries. This kind of security assurance can be divided into "negative security assurance" and "positive security assurance". China has provided Ukraine with negative security assurances in June 5438+February 0994 +65438, that is, it will unconditionally not use or threaten to use nuclear weapons against Ukraine as a non-nuclear country, and this time it has promised to provide Ukraine with corresponding security assurances in case of such aggression or threat. This is a positive security assurance.

Earlier, Russia, the United States, Britain, France and other nuclear powers have provided positive security guarantees to Ukraine in writing. China also provides two kinds of security guarantees to Ukraine. On the one hand, it shows that China is willing to shoulder more international responsibilities and be a responsible big country; On the other hand, it shows that China attaches more importance to developing China-Ukraine strategic partnership.

In fact, China's nuclear security guarantee to Ukraine is different from Russian nuclear umbrella to CSTO member countries, and also different from American nuclear security guarantee to NATO allies. For example, Russia promises to use its nuclear arsenal to attack CSTO member countries when they are attacked by nuclear weapons or even conventional weapons. China's nuclear security guarantee to Ukraine and other countries is only an international arrangement, not the protection of nuclear weapons.