The trick that Devil pulled was finding an Enemy to unite the people to follow him. Right now US people are brainwashed into thinking their neighbors are their enemy, but it only takes one event to change everything to 'Us against Them' again.
See 9-11
Although the false flag operations conducted, in the past, has worked to distract the American citizenry; they were done in a time when the US economy still had its strong foundations, manufacturing sector, and, most importantly, no other economy that was in the same league, as its own.
Such manipulation of the masses events will no longer have the same effect because:
(1) most Americans are skeptical, of their own government officials;
(2) the American economy sucks, for Main Street Americans;
(3) the multi-spectrum divisions between its citizenry are irreversible; and
(4) China's economy is on par with the US and will overtake it in the very near future.
Hence, the US empire's attempt to go to war with anyone will only hasten its economic demise, if it is waged, with an inferior opponent; or result in its Balkanization, if waged against a military peer. The empires and nations that participated in both WWI and WWII all thought they could come out of top. However, even on the so-called winning side, most of those empires either collapsed or quickly evaporated into obscurity.