the Warsaw Pact
In the 80s Soviets ordered our communist government to 'deal' with opposition by introducing martial law. And also suggesting that if our communists won't solve the matter with proper deciseveness, Soviets might 'aid' them in this.
For 40 years we Poles were harboring hostility towards our imperialist Soviet oppressors. Finally in 1989 the shift in global political situation allowed us to throw off the shackles, humoristically called the Warsaw Pact.
I don't think you know how NATO works (but you know sh*it about everything you write about, so it's nothing new).
As a general rule, NATO does not 'attack' its members. That was the Warsaw Pact's speciality.
When a member of NATO is attacked, article 5 of the Treaty kicks in, and members in exercise of the right of individual or collective self-defence recognized by Article 51 of the Charter of the United Nations, will assist the Party or Parties so attacked by taking forthwith, individually and in concert with the other Parties, such action as it deems necessary, including the use of armed force, to restore and maintain the security of the North Atlantic area.
There is no veto power here. Each country reacts to the degree it feels necessary to secure the alliance.
The only veto power in NATO is when a new country wishes to join. And you can bet that if Russia would like to join to become a Trojan horse inside NATO, Poland would happily veto the sh*it out of them.