The document provides background on the start of WWI. Key points include:
- Germany invaded Belgium as part of the Schlieffen Plan to defeat France quickly, bringing Britain into the war.
- Within a few weeks in late July and early August 1914, the major European powers had all declared war on each other, plunging the continent into World War I.
- The war quickly became a bloody stalemate as the armies dug in along trenches stretching hundreds of miles from Switzerland to the English Channel, beginning the era of trench warfare. Machine guns and artillery made it nearly impossible to advance across no man's land.