US defence industry boss calls for clarity on what arms Ukraine needs

The head of one of America’s biggest defence companies has called on western governments to provide a “clear demand signal” if the industry is going to be able to provide the weapons needed for a prolonged conflict in Ukraine.

Kathy Warden, chief executive of Northrop Grumman, one of the top five “prime” contractors in the US, warned that weapons stockpiles had not been built to service a lengthy war.

“The most important…