8. Germany Resumes Unrestricted Submarine Warfare in 1917
In early 1917, Germany made the decisive choice to resume unrestricted submarine warfare, fully aware that this aggressive strategy would likely provoke the United States into entering World War I. The German High Command believed that by intensifying attacks on Allied and neutral shipping, they could starve Britain into submission before American forces could mobilize and intervene. This calculated risk aimed to break the deadlock on the Western Front but ultimately led to the U.S. declaring war on Germany in April 1917. (history.com)
