Complex sentence: Although he does now have to serve five days a year as part of Norway's version of the National Guard, his 2005 service was excused though because it coincided with the World Championships in Oberstdorf.
Split into simpler sentences: Although he does now have to serve five days a year as part of Norways version of the National Guard. His 2005 service was excused though as it coincided with the World Championships in Oberstdorf.