Defense officials say a moving target indicator capability that includes both air and space assets is needed until the department defines its architecture.
Besides long-range aerial fights, both sides also launched drones and cruise missiles against enemy infrastructure, bringing air-defense systems into play.
The bloc is debating language that would make arms companies eligible for lending schemes previously deemed incompatible with sustainability objectives.
The path to a transformed Alliance would begin with the adoption at the summit of transition plan, propose analysts Hans Binnendijk and Alexander Vershbow.