Yup, "there is no compulsion in religion" (Quran) and even there is no compulsion in wearing hijab during prophet Muhammad rule, so I dont understand why any country who implement Shariah Islam force their woman to wear Hijab just like in Saudi, Iran, Aceh etc.
If people dont pray or dont wear Hijab just be it. It is a personal domain, a state cannot force it. It is clear in Quran and Hadith. If wearing hijab become obligation than the intention can be corrupted, so woman wear Hijab because of the state, not because of Allah.