Question

Hi, I'm playing as the United Kingdom in my first game of CoW. Across the sea from me is France. He is an active player, he's built buildings, he's in a coalition with experienced lvl 40 players (which will be a problem), but I scouted him with my planes and he has not made any units. Back in Britain I have 40 units ready to cross the sea and invade. Should I go ahead and attack him now or wait until day 4? Or maybe I should just fortify Britain and keep building units? What should I do?

By the way, France is level 2 and so am I. I'm playing on a Clash of Nations map. It is the beginning of day 2.

Thanks!

Update: I formed a secret alliance with Southern United States, who is currently annexing the NSA

Update #2: I invaded Belgium and Luxembourg, meanwhile I'm researching SP Artillery. France is still not attacking anything