Best way to scale a hill?

[Cartaphilus]

I don't like mountain battlefields. As I am normally the attacker is very annoying to climb like a goat just to fight the enemy.

As a defender I prefer bridges or ford battles - I don't make the mistake of Byrhtnoth in Maldon, if the foes want to cross they have to pay in blood for it.

But the best battlefield on Earth is a green field without many trees. Where the armies can manoeuvre properly.