The Gulf crisis has lessons for Vladimir Putin. Not all may work in his favour

The Ukraine crisis may constitute a more impactful, historic watershed than the 1989 fall of the Berlin wall in the mind of Singapore Foreign Affairs Minister Vivian Balakrishnan.

Russia’s invasion of Ukraine is “perhaps even a bigger moment than the fall of the Berlin Wall,” Mr. Balakrishnan said.

“We believe we are at an inflection point,” he added. “Li…