Which roman era lasted the longest: the roman monarchy, the roman republic, the western roman empire or the byzantine empire?

Write two letters to the editor describing a specific event from the cold war, such as the korean war or the vietnarm war. imagine you are writing the letters from the perspectivees of two world leaders who are on different sides of the conflict. each letters should explain the specific point of view of that person and use historical evidence to support any cliams.