The U.S. military's V-22 Osprey enterprise will be slow to return to full operations as a wide-ranging review of its training and resources continues.
Nearly 200 troops have been injured in attacks from Iran-backed militant groups since October.
Defense Secretary Lloyd Austin blamed his staff for the lack of communication following his hospitalization last month.
The new HGU-99/P Hearing Protection Helmet aims to facilitate crew communication and curtail hearing loss.
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