You just blew your credibility as an analyst with that second to last sentence. The number of men killed in the current war is miniscule compared to those killed in prior conflicts and to other causes of death. By your logic the automobile is the cause of the fact that these women will have to raise children without fathers. The number of males killed in auto accident exceeds those killed in the "current war" by a factor at least in the 20s. (Less than 1000 deaths per year in Iraq/Afghanistan and more than 40,000 killed in auto accidents annually; divide 40,000 by two -- as approximately half auto-accident victims are male -- and you have the ratio.) Math helps cut through the bogus stuff on this board and allows us to see what is beneath and true.
"Large" is a pretty non-specific number to cause you to go off on an arithmetic spree to try prove it false. Of course it's not large compared to WWI or WWII -- and I'll note that the huge number of children who grew up in mother-only homes in those eras did just fine on the whole. Compared to the generation in which the people who are currently having babies grew up, there will be signficantly more children growing up over the next 15-20 years in war-widow-headed homes.