They did this by using piracy to control navigation along the Atlantic coast, disrupting the Brazilian slave trade.
In 1415, Ceuta was conquered by the Portuguese aiming to control navigation of the African coast.
Control of the characters is divided evenly among the number of players, but one player must be chosen as the party leader to control navigation through the game.
By this step he aimed to control navigation of the African coast.
This Google Earth plugin had the necessary features to control navigation.
WML has a scaled down set of procedural elements which can be used by the author to control navigation to other cards.
The pilots control higher functions - navigation and such.
On the world map, Mario (Player 1) controls navigation.