Complex sentence: The Falange, both prior to and after its merger with the Carlists, supported the unification of Gibraltar and Portugal into Spain, during its early years of existence the Falange produced maps of Spain that included Portugal as a province of Spain.
Split into simpler sentences: The Falange, both prior to and after its merger with the Carlists, supported the unification of Gibraltar and Portugal into Spain. During its early years of existence the Falange produced maps of Spain that included Portugal as a province of Spain.