As vice president in January 2017, Joe Biden gave a speech endorsing the idea of a “world without nuclear weapons.” Last year, he took office pledging to reduce America’s reliance on those weapons — perhaps with a promise that Washington would never use nuclear weapons first in a conflict, or perhaps by cutting, even eliminating, the country’s intercontinental ballistic missile force. Biden’s first year has been a reality check. The threat of Russian aggression in Eastern Europe…- Bloomberg Photo: Russian Ministry of Defence