Hindsight is 20/20. You may think that you’re making a strategic decision until that decision takes a turn for the worse. Of course, looking back at what went wrong, the red flags seem obvious. Most of the time, these decisions don’t have major consequences -- you can learn from them and move on. But occasionally, a lapse in judgement can have huge ramifications. When a company, or an executive of a company, makes a mistake, it can cost millions or billions of dollars, and permanently tarnish the brand’s reputation. Business mistakes come in all forms. They may be missed opportunities -- underestimating the potential of new innovations -- or they can be misguided or misunderstood mergers and acquisitions. They may also be caused by lack of research and accountability. To give you a picture of some of the biggest blunders, we created this infographic detailing 15 of the costliest business mistakes in history.