Gregorio Conrado Álvarez Armelino, also known as El Goyo, was an Uruguayan Army general who served as president of Uruguay from 1981 until 1985 and was the last surviving president of the civic-military dictatorship.

The National Army of Uruguay is the land force branch of the Armed Forces of the Oriental Republic of Uruguay. The largest military branch, it is organized and trained to plan, execute and conduct the military actions for National Defense in the terrestrial sphere. It has its roots in the military campaigns of General José Gervasio Artigas within the framework of the Oriental revolution.