Eng.
/ Fr.
Twenty-one NATO countries contribute to the CBRN Defence Battalion on a voluntary basis. National commitments vary depending on the rotation, but there are usually number eight to ten nations involved per rotation.
| Rotation 3 | December 2003- July 2004 |
Lead country: Czech Republic
Contributors: Belgium, Spain, Hungary, Italy, Norway, Poland, Portugal, Romania, Turkey, United Kingdom, United States. |
|---|---|---|
| Rotation 4 | July 2004- January 2005 | Lead country: Germany Contributors: Denmark, France, Hungary, Italy, Turkey, and the United States. |
| Rotation 5 | January 2005 - July 2005 | Lead nation: Spain
Contributors: Canada, Czech Republic, France, Greece, Hungary, Netherlands, Portugal, Slovenia, Turkey, United States. |
| Rotation 6 | July 2005- January 2006 | Lead nation: United Kingdom Contributors: Canada, Belgium, Bulgaria, Denmark, France, Hungary, Netherlands, Poland, Spain, United States. |
| Rotation 7 | January 2006 - July 2006 | Lead nation: Germany Contributors: Bulgaria, France, Hungary, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Turkey, United States. |
| Rotation 8 | July 2006 – January 2007 | Lead nation: Czech Republic
Contributors: Bulgaria, Hungary, Poland, Portugal, Romanian, Spain, Slovenia, Slovakia, United States. |
