Thousands of Armenians marched in Yerevan on April 23 to commemorate World War I-era mass killings of their kin by Ottoman forces, a bloodletting which U.S. President Joe Biden might reportedly recognize as genocide. The annual torch-lit march was held on the eve of the 106th anniversary of the massacres in which — Armenians say — up to 1.5 million ethnic Armenians were killed as the Ottoman Empire collapsed. So far about 30 countries have recognized the events as “genocide,” a characterization which Turkey objects to.