Karel Řehka has long been engaged with military information operations and hybrid warfare. He was promoted to the rank of brigadier general in the Czech Army. After graduating from the Military High School in Opava and the Military University of the Ground Forces in Vyškov, he completed, among other things, a one-year officer course in the United Kingdom and a prestigious Ranger course in the USA. During his service with the Czech army, he participated in missions in the Balkans and Afghanistan, served in the 601st Special Forces Group, and became its commanding officer in 2010. Since November 2014, he served as a Head of the Special Forces Directorate of the Ministry of Defence of the Czech Republic. Later he served as a served as Deputy Commander of the Multinational Division Northeast. He is married with two children.