 Complete the following phrase:  The 224th Mixed Brigade was placed under the 72nd Division of the XVIII Army Corps of the Levantine Army Ejército de Levante. It was sent with this division to the Teruel front line, but the organization of both the brigade and its division was still so deficient that it was not possible to use them in combat and thus it was camped as reserve unit south of La Muela. On 7 March 1938 the brigade was sent, still not fully equipped, to the Battle of Belchite during the imminent rebel 