Bajo Aragón-Caspe (Spanish: [ˈbaxo aɾaˈɣoŋ ˈkaspe]) or Baix Aragó-Casp (Catalan: [ˈbaʒ aɾaˈɣo ˈkasp]) is a comarca in eastern Aragon, bordering the Spanish Autonomous Community of Catalonia.
It borders the Aragonese comarques of Matarranya, Monegros, Bajo Cinca, Bajo Martín and Ribera Baja del Ebro, and the Catalan comarques of Terra Alta, Baix Ebre, and Ribera d'Ebre.
La Franja (Catalan pronunciation: [la ˈfɾandʒɛ]; "The Strip"; Aragonese: Francha) is the area of Catalan-speaking territories of eastern Aragon bordering Catalonia, in Spain. It literally means "the strip" and can also more properly be called Franja d'Aragó (Aragonese Strip), Franja de Ponent (Western Strip) or Franja Oriental d'Aragó (Eastern Strip of Aragon) in Catalan (in Aragonese: Francha Oriental d'Aragón, "Eastern Strip of Aragon"; or simply Francha de Lebán/Levant, "Eastern Strip", or Francha d'Aragón, "Aragonese Strip"; in Spanish: Franja de Aragón, "Aragonese Strip").
La Franja is usually considered to be comprised by a part of the municipalities of the following Aragonese administrative comarcas: la Ribagorza/Ribagorça, La Litera/La Llitera, Bajo Cinca/Baix Cinca, Bajo Aragón-Caspe/Baix Aragó-Casp, Bajo Aragón/Baix Aragó and Matarraña/Matarranya.
The Battle of the Ebro (Spanish: Batalla del Ebro, Catalan: Batalla de l'Ebre) was the longest and largest battle of the Spanish Civil War and the greatest, in terms of manpower, logistics and material ever fought on Spanish soil. It took place between July and November 1938, with fighting mainly concentrated in two areas on the lower course of the Ebro River, the Terra Alta comarca of Catalonia, and the Auts area close to Fayón (Faió) in the lower Matarranya, Eastern Lower Aragon. These sparsely populated areas saw the largest array of armies in the war. The battle was disastrous for the Second Spanish Republic, with tens of thousands left dead or wounded and little effect on the advance of the Nationalists.
Matarraña (Spanish: [mataˈraɲa]) or Matarranya (Catalan: [mataˈraɲa]) is a comarca in eastern Aragon, bordering the Spanish Autonomous Communities of Catalonia and Valencia. It is located in Teruel Province, in the mountainous Sistema Ibérico area.
Its capital is Valderrobres, and it borders the Aragonese comarques of Bajo Aragón-Caspe/Baix Aragó-Casp, and Bajo Aragón, the Catalan comarques of Terra Alta, Baix Ebre, and Montsià, and the Valencian comarques of Baix Maestrat and Ports.