The US military needs to completely rework the design and development of military aircraft and other military systems. The problems with military aircraft is particularly large because it is often not possible to retrofit advances into military jets. A jet built for stealth or hypersonic speed has to have those capabilities designed from the start. 

The F35 is the poster child for bad procurement with many years of delays and cost overruns and design flaws. 

Lockheed Martin and Boeing are the main builders of military aircraft for the United States but they also make rocket launch systems. Atlas is manufactured by United Launch Alliance, a joint venture between Lockheed Martin and The Boeing Company, formed in December 2006.