The "War on Terror" line runs directly through Guantanamo and Assange, and I see a definite a consistency of US foreign policy across all the administrations involved throughout.

The biggest change I've seen in the last 20 years is the recent (sudden?) withdrawal of troops from Afghanistan.

To be clear, I don't think you're wrong, I think we're just coming in at different angles of subjectivity, and the above is just how I see it from where I am.