That would be the war that governments perpetually wage against their citizens. From Dennis Miller at milleronthemoney.com:

As a youngster, my grandmother used a whistle to signal it was time to come home from playing outside. Right after my 5th birthday, WWII ended. She gave me the whistle, and I walked down the sidewalk blowing it as loud as I could. I remember horns were honking, the fire stations had all their sirens blaring. An unforgettable experience for a little guy.
It was the “war to end all wars,” – until Korea, Vietnam, Iraq, Afghanistan, the Ukraine and many others appeared. While these boondoggles have names, the un-named war that has gone on for centuries is white hot today; the never-ending war between the elite (nobility) and the people.
The Constitution gave the power to the people, the nobility has been undermining it at every turn.
Abe Lincoln weighs in:

“It is the eternal struggle between these two principles — right and wrong — throughout the world. They are the two principles that have stood face to face from the beginning of time; and will ever continue to struggle. The one is the common right of humanity, and the other the divine right of kings. It is the same principle in whatever shape it develops itself. It is the same spirit that says, ‘You toil and work and earn bread, and I’ll eat it.’”
Abe led the country into a civil war; the states’ rights of self-governance was subordinated to the federal government. The beat goes on….
Woodrow Wilson changed the constitution. States appointed and recalled senators at will. The amendment called for them to be elected for six-year terms, further strengthening centralized power. Senators, no longer worried about being recalled by the people “back home,” have become “career politicians,” protecting the nobility.