[ Languages ] Open Question : Princesses and Princes of English, is the following paragraph correct? No grammar or punctuations errors?

It was clear that World War 1 was needed not only by Germany but also by other Europeans. Regardless how historians judge World War 1 and European̢۪s mood during that time, it is so obvious that World War 1 was a choice, not an accident and for most Europeans the only hope that left there was to wage that war; therefore, they welcomed it.