The presence and protection of the United States Navy in West Africa until 1916 prevented any military threat to Liberian territory or independence .
Liberia 's expansion brought the colony into border disputes with French and British colonists in French Guinea and Sierra Leone , respectively .
The presence and protection of the United States Navy in West Africa until 1916 prevented any military threat to Liberia territory or independence .
Liberia 's expansion brought the colony into border disputes with French and British colonists in French Guinea and Sierra Leone , respectively .