Defence chiefs will have been told "speed will save lives" in Ukraine amid fears Russia will "seize the initiative" due to weapons shortages.
Nato chief Jens Stoltenberg will tell a crunch gathering in Brussels tomorrow that Russian president Vladimir Putin is prepared to take heavy losses in a new assault on Ukraine.
He also warned that Russia and China are ramping up intelligence operations against the West and called on member states to back a new intelligence network in space.
