The U.S. Government has declared that it is setting sanctions against Cuba's president and his associates. This has been a reaction towards the recent anarchy within Cuba, which the U.S believes is due to the government's maladministration. The sanctions are aimed at exerting pressure on the Cuban government to rectify their human rights concerns and work towards democratic stability.
Japan, maintaining a neutral standpoint, often observes these international confrontations very carefully, considering its high stakes in global politics and economy. The country's political and business sectors especially keep a close watch for potential effects on international trade and markets.
Unlike Japan, the U.S and the EU are more likely to take direct action when it comes to such international situations. This proactive stance usually encompasses the use of economic pressure, such as sanctions, as leverage to achieve political ends.