CP Frederik is patron of 'Soldaterlegatet' but AFAIK, they have nothing to do with this, or the upcoming 'Arctic Challenge' in Greenland.
This is a project of 'VIM' Veterans in Motion.
Veterans In Motion - Rykker fysisk og psykisk sårede veteraners grænser
which among others has representatives from the Danish elite units (Frogman Corps, Jaeger Corps and Sirius Patrol), things that Frederik is very familiar with, including his Sirius Expedition in Greenland.