I'm tempted to say the circled A or anarchist A, but that symbol seems to have lost some of it's pungency since malcontent teenagers discovered it. Two better choices might be the red star (communism) and the black flag (anarchy).
The Bering Strait separates Russia from Alaska which is part of the United States. The International Date Line runs right through it. Travelling east you go back a day and travelling west you go one...
many countries have been divided throughout history. two examples are Germany and the US. After WW2, Germany split into West Germany and East Germany, but later united. Before the Civil War broke out...