A: The United States fought Germany, Austria-Hungary and other members of the Central powers in World War I. America's primary enemy was Germany due to several of its actions designed to shift the war to its advantage. The main factors that contributed were the sinking of the Lusitania and the Zimmermann Telegram.
GitHub is a web-based interface for collaborating on software and documentation projects. It provides version control, issue tracking, and wiki space for hosted projects. GitHub uses Git, a distributed version control system used in the Linuxkernel, the Android mobile platform, and other projects.
Git is known as a distributed (rather than centralized) version control system because you can run it locally and disconnected from the Internet, and then push your changes to a remote system (such as GitHub) whenever you like.