Nato doesn't invade?? Do you think there is a difference for the people living there whether the bombs come from an official nato action, or from a country acting alone with the tacit approval or explicit support of other nato countries?

This feels sorta how in the US only congress can declare war, so we don't declare war anymore. These technical distinctions may be compelling to you but they don't put people's legs back on, they don't pull children out of the grave.

Nato countries acting together with the support of other nato countries do invade. Call that what you want I call it nato invading.