Global Ethics Weekly: Trump's "First-Order Questions" & NATO Defense Spending

Carnegie Council Senior Fellow Nikolas Gvosdev looks at some basic questions Trump is asking about the post-Cold War alliance structures. Referencing a recent panel with George Mason's Colin Dueck and International Institute for Strategic Studies' Kori Schake, should Germany and other NATO allies spend more on defense? And what exactly are we defending when we say the "liberal international order"?