If you mean in World War 2 then it was because Hitler tried to invade Russia and Britain at once by splitting his army in two, both nazi armies failed to defeat Russia nor Britain.
Italy was the only country to switch sides at the very beginning. Bulgaria and Russia switched sides late into the war.
Yes, the players switch sides in tennis. Every odd game total is when players switch sides. For example, after the first game, players switch sides. This goes for after the third game, and so forth.
The players switch sides after halftime to give both teams equal opportunities to win the game.
No, a batter cannot switch sides during an at-bat in baseball.
Nothing borders Russia on all sides. There are seas, Oceans and eleven other countries that border it.
Russia was more with the Allies because Hitler captured Russia Russia sided with both sides
To switch sides you need 5k uri
Because of mistreating
Japan did not switch sides in WW2. They were part of the Axis powers until their final surender in 1945.
22 Jun 1941 when Germany invaded Russia
They have stopped communism
The cold war