Cold Response is the name given to Norwegian exercises with invited Partnership for Peace countries held in northern Norway. The first one was the largest military exercise in Norway in 2006. Around 10,000 soldiers from 11 nations participated. It was a national Norwegian exercise with all NATO states invited to participate. The second exercise was held in March 2007, and the third in March 2009. The fourth exercise was held in February–March 2010. Approximately 8,500 soldiers participated. The 5th exercise was held from 12–23 March 2012, where over 16000 soldiers participated.