Until russia become north korea v2NATO's red line should be Russia current borders. not an inch of occupied territory should be accepted as Russian. South Ossetia, Crimea, etc etc. squeeze russia for 300 years if necessary until it withdraws
Its good news for the world.Is it a large combat ship ? Then this is a serious escalation of the war. Very bad news. Russia getting cornered is not good thing for the world.
West needs to try for a peace deal immediately. Hopefully Russia will also cooperate.
West need to send as many weapons possible.