Exhorted service members to defy the chain of command? When did that happen?
Because the video I saw has them reminding service members they took an oath to the constitution and they have to disobey unlawful orders.
What video are you talking about?
Can you provide a link to a youtube video with a time code or a transcript so I can see this exact moment where they tell the service to defy the chain of command?
Because insisting that someone who made a video reminding service members that they took an oath to the constitution and they are expected to disobey unlawful orders is engaging in sedition is absolutely absurd.
Unless you think that Trump will order them to do something illegal and you think they should carry that order out.