Given the question: Information: - Christophe Sercu is the general manager of cycling team Topsport Vlaanderen - Baloise . He is the son of former cycling champion Patrick Sercu . He is involved in organizing some cycling races . From 2000 until 2004 , he was General Manager of the Lotto - Adecco cycling teams . - A cycling team is a group of cyclists who join a team or are acquired and train together to compete in bicycle races whether amateur or professional and the supporting personnel. Cycling teams are most important in road bicycle racing, which is a team sport, but collaboration between team members is also important in track cycling and cyclo-cross. - Cyclo-cross (sometimes cyclocross, CX, cyclo-X or cross) is a form of bicycle racing. Races typically take place in the autumn and winter (the international or "World Cup" season is OctoberFebruary), and consist of many laps of a short (2.53.5 km or 1.52 mile) course featuring pavement, wooded trails, grass, steep hills and obstacles requiring the rider to quickly dismount, carry the bike while navigating the obstruction and remount. Races for senior categories are generally between 30 minutes and an hour long, with the distance varying depending on the ground conditions. The sport is strongest in the traditional road cycling countries such as Belgium (Flanders in particular), France and the Netherlands. What is the relationship between 'christophe sercu' and 'belgium'?
The answer is:
country of citizenship