If Ukraine were kept out, it could easily fall back under the sway of a newly resurgent Russia;and the knock-on effects for other vulnerable places, such as Georgia and Moldova, could be serious.

• 尽管许多乌克兰人对本国加入北约持怀疑态度，但几乎所有人，甚至在该国东部以俄语为主的地区，都希望加入欧盟。