_ and are at the heart of the NATO Alliance, underpinned by Article 5 of the Washington Treaty and an enduring transatlantic bond.

A. Defense and Perseverance
B. Defense and military build up
C. Deterrence and defence
D. All of the above

Submitted by: Muhammad Abdullah

_________ and ________ are at the heart of the NATO Alliance, underpinned by Article 5 of the Washington Treaty and an enduring transatlantic bond.