UKRAINE has proved to be a different kind of emergency. Unlike Afghan scholars, for whom the threat is so dire that the only choice is to evacuate as many as possible, many Ukrainians prefer, at least for now, Jane Unrue says, to remain in their own country or nearby. Some of them have joined the fighting; others have loved ones in the war. Plus, “There are pathways for refugees in Europe, where they’re receiving support,” she says. This year, Harvard’s program has invited three Ukrainians so far—a mathematician, a comparative literature scholar, and a Crimean physician—along with another mathematician from Russia.