If you want a glimpse of a changing global order, go to Singapore.

That’s what I did recently, when I served as the S. Rajaratnam Professor of Strategic Studies at the Rajaratnam School of International Studies and met extensively with leading thinkers and government officials.

Singapore is a mind-blowing success story that reminds us how distinctive America’s post-World War II global project was — and how much uncertainty today’s more unilateral, abrasive superpower is creating for smaller states.