Dutch side- No- unless it's stated that service charge is included. Don't ask if tip is included. If you see 15% service charge on the bill then it's been charged and no more money is needed.

French side-- Service charge is always included in the menu price. It may feel weird not leaving 15% or so but as I said service charge is included in the price ALWAYS. You may leave an extra $5 or so if you think the service was outstanding. Don't ask if the tip is included.