New devices from Motorola and Google prove that phones with bendable screens keep getting better — and some are even becoming cheaper.

© Kelsey McClellan for The New York Times

Moscow’s troops have retaken a few villages in a border area that Kyiv’s forces invaded last month and are also advancing steadily in eastern Ukraine.

© Nicole Tung for The New York Times

As China pushes to dominate the South China Sea, it is increasingly willing to use force to drive out the Philippines. In recent months, China’s tactics have raised fears of a superpower showdown in the strategic waterway.