Bali: Four months after Russia invaded Ukraine, President Joko Widodo of Indonesia tried to engineer detente. He travelled to Ukraine to meet with President Volodymyr Zelenskyy, offering to bring a message to President Vladimir Putin of Russia. Then, he flew to Russia, where he urged Putin to start a dialogue with Zelenskyy. Beneath the calls for peace, Joko had another pressing issue: Russia had blocked wheat shipments and restricted the exports of fertilizer. Ukraine is Indonesia’s second-largest source of wheat, inflation was soaring, and Indonesian farmers were complaining about the rising price of fertilizer. In the end, Joko did not...