VILSECK, Germany — Girl Scouts and Boy Scouts hiked through Grafenwöhr Training Area and fell asleep to the rattle of helicopters and machine guns during Intercamp 2006 — one of the largest Scout jamborees in Europe. Some 2,000 Scouts, aged 11 to 17, camped out at Vilseck Army Airfield from Friday to Monday during the jamboree, which involved troops from the U.S., Canada, Britain, Germany, the Czech Republic, the Netherlands, France and Belgium.