Speaking as a long time US soldier here is how the military perceives code:
* There is no copyright and plagiarism doesn't exist. Internally to the military everything is libre to the most maximum extreme. While people do get credit for their work they have no control over that work and anybody else in the military can use their work without permission.
* Service members and employees of the military are not allowed to sue the military. As a result software written by the military has no need to disclaim a warranty or protect itself from other civil actions.
* Information Assurance protections are draconian. This is half way valid in that there are good monitoring capabilities and military information operations are constantly under attack like you couldn't imagine. The military gets criminal and script-kiddie attacks just like everybody else, but they also get sophisticated multi-paradigm attacks from nation states. Everything is always locked down all the time. This makes using any open source software really hard unless it is written yourself or you work for some advanced cyber security organization.
* There is no copyright and plagiarism doesn't exist. Internally to the military everything is libre to the most maximum extreme. While people do get credit for their work they have no control over that work and anybody else in the military can use their work without permission.
* Service members and employees of the military are not allowed to sue the military. As a result software written by the military has no need to disclaim a warranty or protect itself from other civil actions.
* Information Assurance protections are draconian. This is half way valid in that there are good monitoring capabilities and military information operations are constantly under attack like you couldn't imagine. The military gets criminal and script-kiddie attacks just like everybody else, but they also get sophisticated multi-paradigm attacks from nation states. Everything is always locked down all the time. This makes using any open source software really hard unless it is written yourself or you work for some advanced cyber security organization.