General Douglas MacArthur's island-hopping strategy involved sending US troops island-by-island across the Pacific to dislodge Japanese forces stationed on those islands. The US lacked the means to send troops directly to Japan primarily because the Japanese controlled numerous islands across the Pacific to serve as fueling stations for ships and air stations for planes. Through island-hopping, MacArthur gradually took out those Japanese forces and converted the islands into fueling and flight stations for the United States thereby allowing the US to move closer and closer to the Japanese mainland.
Mali’s greatest ruler was Mansa Musa who was known to travel across Africa with hundreds of slaves who carried 4 pounds of gold while camels carried 300.
Mandatory fines, jail sentences and drivers license suspensions help deter drinking and driving. The swifter the punishment, the more effective it is at preventing drunk driving.