President Donald Trump's vice president is JD Vance, a former senator from Ohio. What made Vance's selection unusual was that he once called Trump an "idiot" and "reprehensible," among other derogatory remarks. It's just one example of how former enemies can become allies, especially within the political arena, where pride can be easily swallowed in pursuit of power, and occasionally even for the good of a country. So, what are history's most notorious examples of rivalry and reconciliation?
Click through and discover those who became friends after being foes.