As NATO readies for what some believe is a new Cold War with Russia, the seventy-year-old alliance struggles to manage widening internal divisions.

Russia's war against Ukraine has provided NATO with a new sense of purpose and strategic relevance. DW explains the purpose of the trans-Atlantic security alliance and Article 5, the collective ...

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If Ukraine joins NATO in the middle of the war, then Russia is at war with the entire NATO alliance. At the core of this conundrum is Article 5. Here's a closer look at what that means.