Thomas Rathsack is a lecturer and former member of the Danish Jaeger Corps.

He served with the Royal Life Guards as a sergeant before getting accepted into the Jaeger Corps in 1990. After retiring from the army he worked as a photographer and IT specialist. He reenlisted after the September 11 attacks.

He writes about his experiences in Iraq and Afghanistan in his book Jæger – i krig med eliten (Jaeger: At War with Denmark's Elite Special Forces), which was widely talked about and criticized.Andreas Lindqvist, "Politiken udgiver omstridt bog", Politiken, 15 September 2009 (Accessed 28 March 2010) (in Danish)Nick Collins, "Special forces soldier's book causes storm in Denmark", Telegraph, 23 September 2009, accessed 28 March 2010

In 2017, he featured in a TV2-produced show which put 30 men through Jaegor Corps-like physical tests.

References