NATO Secretary General Jens Stoltenberg stated that Ukraine's right of self-defense under international law includes striking legitimate military targets inside Russia, particularly relevant given heavy fighting in Kharkiv region near the border.

Ukraine has the right to self-defense, which includes striking targets outside Ukraine, legitimate military targets inside Russia

The most heavy fighting is now taking place in the Kharkiv region, close to the Ukrainian Russian border

It would be very hard and difficult for the Ukrainians to defend themselves if they cannot hit military targets just on the other side of the border

These may be missile launchers, artillery, or airfields which are used to attack Ukraine

Decisions on whether Ukraine can hit military targets inside Russia using Western weapons are by NATO Allies on a national basis

Some Allies have not imposed restrictions on the weapons they have delivered, others have

The fact that we are delivering equipment to Ukraine doesn't make NATO party to the conflict

Ukraine had the right to strike 'legitimate military targets inside Russia'.