CNET noted the irony of such efforts since Linux was one identified by the US Department of Defense as one of such threats in the past. (Source of remarks: CNET: https://news.cnet.com/8301-13505_3-10384067-16.html?part=rss&subj=news&tag=2547-1_3-0-20).
The Defense Department stated that open-source software will also bring some clear advantages that proprietary software may not be able to offer. Such benefits of open-source software include:
-- suitable for rapid prototyping and experimentation
-- a cost advantage
-- unrestricted ability to modify software source code
-- reduction of proprietary restrictions
-- identification and elimination of defects through peer-review system