The U.S. has sent a number of large military transport planes loaded with supplies, including desperately needed oxygen, to India for its lethal battle against COVID-19, a top security official said Sunday. India is home to more than a third of the world’s new COVID-19 cases, according to U.S. officials, and that grim tally soared to a new peak Saturday, with 401,993 cases recorded after a 10-day stretch of more than 300,000 daily cases. Overwhelmed hospitals are turning away sick patients, with supplies of oxygen and medicine running low, and skies are smoke-filled from crematoriums working a...