Which statements describe the casualties from World War I? Check all that apply.

More lives were lost in WWI than any previous war.
Very few lives were lost in WWI when compared to previous wars.
In many of the countries in the war, more than half of the mobilized soldiers were killed.
In most of the countries involved in the war, less than 10% of the soldiers were killed.
Half of the soldiers from the United States were killed in the war.