Intercept

Intercept, when attacked have an option to march towards oncoming armys for a chance to catch them off guard. So some one attacking from an hour away can't set the attack and wander away till the set time of attack.

It's an interesting idea. I like the concept of being able to be aggressive towards an attack. I see problems with it however it's an idea that would be quite interesting at the least if implemented.

However if you're attacking from hours away you wouldn't want to have to stick around for that whole amount of time. So perhaps the option to intercept must be chosen within the first few minutes of when an attacked is launched.