CLEAN : 'Allies providing wide range of different weapons systems' to Ukraine says NATO chief

The video discusses various topics, starting with a brief mention of meat, followed by a discussion on the unacceptability of violations of international law and war crimes. The speaker refrains from commenting on specific incidents due to a lack of information. The video concludes with a discussion on the provision of a wide range of weapons systems to a country defending itself, highlighting the blurred lines between offensive and defensive systems.

How does the teacher describe the distinction between offensive and defensive weapons?

What is the context in which the teacher discusses a country defending itself?