Panama Canal fence

The Canal Zone became a U.S. territory and had its own police,[2] post offices, courts, television and radio stations.

Canal Zone police responded firing shots and tear-gassing protesters pulling or climbing on the fence.

These events compelled President Roberto Chiari to break diplomatic relations with the United States.

Although the diplomatic relations between Panama and the United States were re-established on April 3, 1964, through the joint declaration Moreno-Bunker, these events led to significant Panamanian resent.

However, the official and unofficial policies governing the ingress and egress of United States and Panama citizens, which had a significant impact on the functional effect of the fence, remain unknown.