text:  In the elation of triumph from this success he is even said to have contemplated marching through Africa to attack Al-mansor in the east; but this design was frustrated by the continual rebellions of the Arab tribes whom all his address and prudence was unable to keep in order; and "while the Moslems were revolting against their sovereign the Christians of Galicia gathered strength took possession of the towns and fortresses on the frontier and expelled their inhabitants