Advanced tactics
From EU3 Wiki
[edit] Baiting your opponent's army
This strategy works well against a fairly evenly matched opponent. Put your infantry on the front lines, but keep your cavalry one province behind. When you see the opponent's armies advancing on your infantry, check the arrival date by hovering the mouse over the opposing armies. Since your cavalry are fast moving, they should be able to reinforce your infantry in time. Try to time the cavalry's arrival to the same day as your opponent's arrival. That way, your opponent won't be able to back away before the battle begins.

