Early last month, the Indonesian government held its first ever congress of Indonesian diaspora in Los Angeles. With the rising importance of Indonesia in international relations, engaging its citizens overseas is one logical way to increase the country’s soft power and culture abroad.

India's soft power has now been on display for at least a couple of decades: ... Bollywood's prodigious celluloid fare has long drawn huge audiences in significant parts of Asia, Africa, and beyond; India's English-language novelists have often edged out native British writers for the prestigious Man Booker Prize; and, of course, yoga studios have become all but ubiquitous in the United States.

The U.S. and Iran have been at odds for decades.... But in Japan, a nation that tries to maintain good relations with both countries, a major exhibition featuring the work of one of America’s most recognizable artists is showing how appreciation for good art can bring even the most intractable foes closer together.