I think the cold war is alive and well, just not the same as it used to be. The USA still spends a huge amount of money on the military and nuclear weapons. Russia is fighting Chechnya and does not seem to get along well with it’s former republics. The Yeltsin administration does not seem stable. China continues to threaten Taiwan and other nations in the Orient. They have advanced their nuclear and ballistic weaponry, partly by stealing USA secrets. China still has a communist government.
Germany is united, but East and West Germany don’t seem to get along well and still have differences. The economy of Eastern Europe is struggling and ripe for discontent. Bosnia/Yugoslavia is a mess, and the Russians want to handle it differently than NATO does.
To me, the fall of the Berlin Wall was a change in the cold war, a thawing, but it is not guaranteed to last. It is not the end of the cold war. The end would be if NATO, Russia, and China greatly reduced their military and were more peaceful and agreeable.
I don’t know how people can say the Cold War is over when there are still enough nuclear weapons pointed at each other to blow up the world.