USA
Watch: A rare glimpse inside a factory making US Army ammunition
The US Army has asked that artillery shell production triple over the next two years.
It comes as Nato's chief says the West is now in a "logistics race" with Russia to see who can produce weapons quicker.
One manufacturer, General Dynamics, has allowed a rare glimpse behind the scenes at one of its factories, Scranton Army Ammunition Plant, as it works flat out to meet demand, as the video above shows.