text: Significant wars were fought in Britain , where his general Agricola attempted to conquer Caledonia ( Scotland ) , and in Dacia , where Domitian was unable to procure a decisive victory against king Decebalus .
simplified: Significant wars were fought in Britain , where his general Agricola attempted to conquer Scotland , and in Dacia , where Domitian was unable to get a decisive victory against king Decebalus .