France would defeat any such invasion, handily so, definitely.
I'm not so convinced by a Pale of Dover idea. Frankly, I don't think it's worth it for Louis XI or Charles when he succeeds. He's got bigger fish to fry in Burgundy. More likely would be finding somebody with a half decent claim to the throne. If Richard is dead, he can be installed easily. If Richard is still alive said kid can be the focus of any rebellion. Either way, if hr wins, he'll be very grateful. Maybe somebody can get young Warwick out of London? An ambitious de la Pole? I'm sure somebody can be found, even if it's a Percy Warmneck or Lamkin Simkin (apologies to Sellar and Yeatman).
I'm not so convinced by a Pale of Dover idea. Frankly, I don't think it's worth it for Louis XI or Charles when he succeeds. He's got bigger fish to fry in Burgundy. More likely would be finding somebody with a half decent claim to the throne. If Richard is dead, he can be installed easily. If Richard is still alive said kid can be the focus of any rebellion. Either way, if hr wins, he'll be very grateful. Maybe somebody can get young Warwick out of London? An ambitious de la Pole? I'm sure somebody can be found, even if it's a Percy Warmneck or Lamkin Simkin (apologies to Sellar and Yeatman).