The new methods of so-called "hybrid warfare" have shown that Ukraine's defense sector requires comprehensive reform, in which NATO is ready to help, the leader of the Ukrainian security council has said.

Ukraine's National Security and Defense Council Secretary Andriy Parubiy said this after a meeting of the NATO-Ukraine joint working group on defense reform that took place in Brussels on Monday at NATO headquarters.

"Unfortunately, the new methods of war that Russia is using against us, the so-called 'hybrid warfare', in which subversive groups and criminals are used, and an information war is conducted, show the need for reformatting and reforming our defense sector. Today, we have talked about this with our partners in NATO and discussed the issue of providing experts to conduct an inspection of the security sector and implementing these reforms," he said.

According to Parubiy, Ukrainians feel great moral support from its NATO partners.

"The atmosphere is such that everyone understands that if they do not stop Putin in Ukraine, no one knows where his tanks will be tomorrow. Everybody understands that this crisis is not between Ukraine and Russia, it is a global civilization crisis, which we have to solve together to stop Putin," the NSDC secretary said.