WASHINGTON — Artificial intelligence and autonomous robots could hold the key to improving the lethality and performance of close combat units. Front-line infantry personnel have long suffered ...

US analysts have attributed the catastrophic personnel losses to Russian commanders’ over-reliance on these highly skilled commando units in front-line infantry formations at the start of the war.

Across the line infantry, around one in every 100 men had been in service since the 1790s, and more than one in ten for a decade or more. The median first year of service was around 1812, ranging from ...