The WT's strategy is curious, if desperate. There is no doubt that WWI, WWII and the Spanish Flu were among the worst disasters to hit humanity. But the WT conveniently ignores the fact that since the end of WWII, which was approx 70 YEARS AGO, the world has entered a time of unprecedented peace and prosperity, also known as the Pax Americana. So, they have no choice but to cling to WWI and the Sp Fl as signs of the times, b/c they have precious little else to which to point.
You'll notice in the sidebar on the Ride of the Four Horsemen, that they simply offer broad numbers (70 million people died from hunger, etc.) without--as usual--offering any context, the context being the fact that more people were alive during the 20th cen. than any other time in history, mostly because they WERENT dying of pestilence, food shortages and other disasters like they had been in earlier times. It's interesting that the WT does use the term "localized" to describe warfare since WWII. Also no mention of the fact that there are now more people overweight on the planet than malnourished.