A mid-September test flight of Vulcan could permit a military launch this year

The US Space Force has contracted ULA's Vulcan rocket for the majority of military space missions. Pentagon aims to launch 25 missions by 2027.

ULA's successfully launched Vulcan rocket is set for its Cert-2 mission. Second flight required for national security satellite launch certification.

ULA decides to launch second Vulcan rocket without payload due to Dream Chaser unavailability. Calling it 'certification at our own expense.'

Vulcan's second test flight planned for September 16 with a dummy payload. Minor launch schedule adjustments possible before the date.

Read at Ars Technica