Graphic Truth: NATO’s 70 years of expansion
For almost half a century NATO and the Soviet-backed Warsaw Pact alliance glowered at each other across the Iron Curtain. But after the Soviet empire collapsed, NATO expanded further eastwards, welcoming former East Bloc members into the organization. For these countries, it was a way to anchor themselves firmly in the "West," and to protect themselves from any future Russian revanchism. But Moscow saw NATO's eastward creep as a direct challenge to Russia's sphere of influence. Tensions between Washington and Moscow over NATO persist. Here's a look at the history of the organization's expansion.