Answer:
began in 1914 and lasted till 1918
two forces called the Central Powers and the Allied Powers
tensions escalated on the Balkan region of southeast
Step-by-step explanation:
World War I which began in 1914 and lasted till 1918 was a global scale war where many countries allied as well as fought against one another. The war was divided into two forces called the Central Powers and the Allied Powers. The Central Powers consisted of Germany, Austria-Hungary, Bulgaria and the Ottoman Empire while the Allied Powers consisted of Great Britain, the United States, France, Russia, Italy and Japan. The war broke out between these forces when tensions escalated on the Balkan region of southeast Europe. Eventually, the Allied Powers achieved victory in 1918 and the war came to an end. It is estimated that more than 16 million lives have been lost during these four years of war.