Answer:
Asia, Europe, the Middle East, and Africa
Explanation:
North and South America, Australia, and Antarctica are not the Old World.
The Battle of Antietam, also known as the Battle of Sharpsburg. 22,000 casualties, actually.
The answer is two and a half years.
The United States watched World War I from afar for two and a half years before entering and declaring a war against Germany on April 6, 1917. Before entering the war, United States was intent on keeping a neutral relationship between countries that are involved in the war.
Brazil and Mexico are the oldest
United States, should be the correct term.