World War II marked by 50 to 85 million fatalities, most of whom were civilians in the Soviet Union and China. It included massacres, the genocide of the Holocaust, strategic bombing, premeditated death from starvation and disease, and the only use of nuclear weapons in war. Japan, which aimed to dominate Asia and the Pacific, was at war with China by 1937, though neither side had declared war on the other. World War II is generally said to have begun on 1 September 1939, with the invasion of Poland by Germany and subsequent declarations on Germany by France and the United Kingdom. From
What Hurts the Most hip-swiveling chorus after a flurry of robotic drum beats is certainly a good giggle." Kurt Kirton of About.com named it one of the album's standout tracks. Chuck Taylor of "Billboard" gave "What Hurts the Most" a positive review, writing that "this track is remixed into a frothy uptempo anthem, complete with requisite percussive thump and an exulted vocal (with 12 mixes in all) that leaves the lyric's potential heartbreak in the dust." Taylor ended his review, asking "Wouldn't it be wondrous if American programmers renewed their vow in 2008 to put variety on the airwaves—or do we really need a