Complex sentence: The heraldry of the General Staff of the Armed Forces (EMGFA) was established in 1977, based on the 1969 heraldic rules of the Army and the 1972 rules of the Navy.
Split into simpler sentences: The heraldry of the General Staff of the Armed Forces (EMGFA) was established in 1977. It was based in the 1969 heraldic rules of the Army and in the 1972 rules of the Navy.