title: NATO and transatlantic security after 1991
abstract: With the withdrawal of Soviet forces from Eastern Europe, NATO’s clear, well-defined role of collective defence (an attack on one member being an attack against all, who will collectively act to defend it) required re-evaluation and, perhaps, supplementing with other ‘desirable’ goals. This provided an overriding central theme throughout the 1990s, coalescing around three themes: enlargement of Alliance membership; building a positive partnership with Russia; establishing the geographical extent