Economic sanctions are mainly used to?

Economic sanctions are mainly used to "punish nations that disobey international law".

A sanction is a punishment imposed on another nation, or on individual natives of another nation. It is an instrument of remote arrangement and monetary weight that can be depicted as a kind of carrot-and-stick way to deal with managing universal exchange and legislative issues.  

Economic sanctions are characterized as the withdrawal of standard exchange and money related relations for outside and security strategy purposes. They might be extensive, denying business movement as to a whole nation, similar to the long-standing U.S. ban of Cuba, or they might be focused on, blocking exchanges of and with specific organizations, gatherings, or people.

the captain of a steam ship naturally chooses the shortest route to his destination. since a sailing ship is usually pushed by winds and currents, its captain must find a route where the wind will probably blow in the right direction. tacking, i.e. using contrary wind to pull (sic) the sails, was always possible but wasted time because of the zigzagging required, and this would significantly delay long voyages. the early european explorers were not only looking for new lands. they also had to discover the pattern of winds and currents that would carry them where they wanted to go. during the age of sail winds and currents determined trade routes and therefore influenced european imperialism and modern political geography. for an outline to the main wind systems see global wind patterns.

pilotage or cabotage, in one sense, is the art of sailing along the coast using known landmarks. navigation, in one sense, is the art of sailing long distances out of sight of land.[1] although the polynesians were able to sail the pacific (with great difficulty) and people regularly sailed north and south across the mediterranean, before the time of columbus nearly all sailing was coastal pilotage

        it is some were in here? ///