The massive carved stone heads found at saint lorenzo and other ancient olmec sites tell us that the olmecs

Answer;

Had a complex society with separate settlements and different rulers

Explanation;

The Olmec were the first major civilization in Mexico. They lived in the tropical lowlands on the Gulf of Mexico in the present-day Mexican states of Veracruz and Tabasco.

The Olmecs are one of the most fascinating civilisations in the Pre-Columbian Americas. They are easily recognised by their creative, enigmatic, and soulful artwork; They were the first to introduce ball-courts and they are candidates for the first writing and the initiation of the long-count

answer: ensure protection from communism

explanation:

the north atlantic treaty was largely dormant until the korean war initiated the establishment of nato to implement it, by means of an integrated military structure: this included the formation of supreme headquarters allied powers europe in 1951, which adopted the western union's military structures and plans.