Microsoft is taking another turn at testing its HoloLens-based combat goggles with the US military. The company has confirmed to Engadget that it's delivering improved IVAS (Integrated Visual Augmentation System) 1.2 devices to the Army before the end of July. These updated augmented reality models are "slimmer, lighter and more balanced" than before, Microsoft says. That, in turn, should make them more comfortable and improve soldiers' performance.