Oh how I would love to be a US citizen and stand my ground.
In this disgusting Europe,you literally have to wait for the attacker to fire a bullet at you,and only then (if he misses or you're wounded),you can fire back. Even at your own home facing a burglar.
Otherwise they will most likely drag you through courts for years and probably you will be jailed.
Not to mention you aren't allowed to carry a gun at all