The British Empire invaded 9 out of 10 modern countries. No other empire has done this. Now, if what's inside your empire is equivalent to what's outside your

The British Empire invaded 9 out of 10 modern countries. No other empire has done this. Now, if what's inside your empire is equivalent to what's outside your empire, what's the motivation to expand? Many empires start from the belief that they're superior to others, even if only philosophically, as a justification to expand.