 When Gorbachev said Germany could be reunited, but NATO can't expand eastward, the U.S. abided by that until Clinton. From 16 alliance members 30 years ago, that number's doubled. Jens Stoltenberg maintains it's... Paved the way for EU integration and brought peace and prosperity across the continent. But the Ukraine conflicts brought skyrocketing energy costs and political turmoil here as incumbent governments feel the heat from disgruntled voters. Tom Rivers, ABC News, at the Foreign Desk.