CLEAN : British US forces hand over control of last base in Afghanistan

The video tutorial covers various topics, starting with an introduction to Vinyl, followed by a discussion on the Afghan national security forces. It then explores the role of Marines and soldiers in ceremonies, concluding with a focus on the ceremony itself.

Analyze the context in which 'Vinyl' is mentioned in the text.

What can be inferred about the relationship between the Afghan national security forces and the soldiers mentioned?