In the spring of 2003, as it was starting to become clear that Iraq would not, in fact, be a cake walk, George W. Bush said the following to the growing insurgency there:
More than 4,000 American troops have died since Bush issued this challenge. Men and women who paid the ultimate price for Bush’s schoolyard challenge.


That's what I assume too. It's a really common way for nervous sweat to be drawn in manga, and western…