Complex sentence: Following the inauguration of President Julio César Méndez Montenegro and Colonel Rafael Arriaga Bosque's subsequent promotion to Defense Minister, the Mendez administration activated the' Special Commando Unit of the Guatemalan Army' (SCUGA).
Split into simpler sentences: Following the inauguration of President Julio César Méndez Montenegro, he appointed Colonel Rafael Arriaga Bosque to Defense Minister. Mendez activated the'Special Commando Unit of the Guatemalan Army' (SCUGA).