Inaugural addresses serve several purposes: Presidents outline their agenda, they signal American citizens that they will serve all of them, irrespective of their background and beliefs, and they reassure America's allies of their ongoing support. While Donald J. Trump did indeed announce his agenda and his next steps, his second inaugural address was unusually partisan and combative.

Reading suggestion:

How to Hide an Empire: A Short History of the Greater United States by Daniel Immerwahr (DE: Das heimliche Imperium: Die USA als moderne Kolonialmacht)