As Ukraine and Russia burn through artillery shells, the US Army is looking for new highly precise rounds to fire from its extra-long-range cannons

• Artillery has been one of the most heavily used weapons by both Russia and Ukraine.
• The intensity of its use has added urgency to the US military's efforts to update its artillery.
• As part of that work, the US Army is investing in precision shells and long-range cannons.

The war in Ukraine has highlighted both the value of precision-guided artillery rounds and how such munitions can be foiled by jamming navigational technologies such as GPS.

But the US Army is moving forward with a plan to design a self-guided 155-mm shell that can home in on tanks and other targets, even when GPS signals are jammed, and can be fired to ranges well beyond what current US artillery can reach.