It is a reasonable red line: if US personnel are explicitly entering the war, Russia and the US are now explicitly at war. Being at war means the US becomes a target, that Russia could, say, blow up THAAD in Israel and destroy the "secret" US base and Daesh training grounds in Jordan and Syria. At some point, nukes become relevant.
Do you think war between Russia and the US is a good thing?
The US can't shoot down missiles for Ukraine because "Russia has nuclear weapons"? Do they even put in any effort for these excuses?
Not starting a nuclear holocaust over Ukraine actually seems like a pretty fucking good reason to me.
But it's shooting down missiles. America is already supplying the missiles for Ukraine to strike Russia with. Which is far more agressive
It is a reasonable red line: if US personnel are explicitly entering the war, Russia and the US are now explicitly at war. Being at war means the US becomes a target, that Russia could, say, blow up THAAD in Israel and destroy the "secret" US base and Daesh training grounds in Jordan and Syria. At some point, nukes become relevant.
Do you think war between Russia and the US is a good thing?
Yeah, but shooting down the missiles personally would turn it into a direct war