The Hedgehog War was a war that lasted from 2004 to 2005.
Like the name implies, it had something to do with hedgehogs. Dr. Hands fought in the Hedgehog War, and was injured in an accident, causing a brick to be permanently stuck to his right hand. In doctor handz character bio she, uploaded on 24th October 2010, it states that the Hedgehog war took place 6 years prior to the upload of the picture, meaning that it started in 2004. It also states that the war ended a year after Dr. Hands was drafted into the war, meaning that it ended in 2005.