NEXUS is a capability package that will create decision superiority by delivering relevant information and capabilities to war fighters. There are 5 Work Packages which form Nexus and will be procured. Work package 2: Sustain Air Cloud Hosting Environment (ACHE) and Air Information Platform (AIP): The sustain activities include level 1 and 2 maintenances of both the hardware (ACHE) and software (AIP and visualisations) delivered under the DARK STAR project. This activity also includes the associated regression testing, software validation, and deployment of the new AIP software, including any externally developed capability enhancements (e.g., those developed under Grow AIP). All software pushed to production must be delivered through the Sustain ACHE and AIP activities.