If Russia is responsible then we are in the situation no one wanted and I do not know what the response will be. However as has been reported in this thread, it is looking likely that it was not Russia but an accident by Ukraine. I worry about you people so desperate to start WW3 before you even know what the situation is. You do big attack on Russia or even make Russia believe you are going to and you are dead. That is why this is the situation everyone dreaded though thankfully it looks like it was not RussiaDo you think with N Korea firing ballistic missiles over Japan, that if one just happened to accidently fall on Tokyo, would that be an unfortunate killing of 10s of thousands of people? Same thing just on a larger scale. If no action is done to Russia right now, you can bet Vlad the bare chested horse rider, will launch a few more accidently to see if he can go further, like he did in the Crimea.
Joe Biden is worse than Neville Chamberlain....