I know not with what weapons World War III will be fought, but World War IV will be fought with sticks and stones.
Albert Einstein

You cannot simultaneously prevent and prepare for war.
Albert Einstein

I do not believe that civilization will be wiped out in a war fought with the atomic bomb. Perhaps two-thirds of the people of the earth will be killed.
Albert Einstein

I am not only a pacifist but a militant pacifist. I am willing to fight for peace. Nothing will end war unless the people themselves refuse to go to war.
Albert Einstein

It is my conviction that killing under the cloak of war is nothing but an act of murder.
Albert Einstein

The most successful war seldom pays for its losses.
Thomas Jefferson

It is our duty still to endeavor to avoid war; but if it shall actually take place, no matter by whom brought on, we must defend ourselves. If our house be on fire, without inquiring whether it was fired from within or without, we must try to extinguish it.
Thomas Jefferson

I have seen enough of one war never to wish to see another.
Thomas Jefferson

The republican is the only form of government which is not eternally at open or secret war with the rights of mankind.
Thomas Jefferson

War is an instrument entirely inefficient toward redressing wrong; and multiplies, instead of indemnifying losses.
Thomas Jefferson

I abhor war and view it as the greatest scourge of mankind.
Thomas Jefferson

I don't oppose all wars. What I am opposed to is a dumb war. What I am opposed to is a rash war.
Barack Obama

We're not going to baby sit a civil war.
Barack Obama

There are patriots who opposed the war in Iraq and there are patriots who supported the war in Iraq. We are one people, all of us pledging allegiance to the stars and stripes, all of us defending the United States of America.
Barack Obama

Where the stakes are the highest, in the war on terror, we cannot possibly succeed without extraordinary international cooperation. Effective international police actions require the highest degree of intelligence sharing, planning and collaborative enforcement.
Barack Obama

Operations in Iraq and Afghanistan and the war on terrorism have reduced the pace of military transformation and have revealed our lack of preparation for defensive and stability operations. This Administration has overextended our military.
Barack Obama

The United States is not, and never will be, at war with Islam.
Barack Obama

We should declare war on North Vietnam. We could pave the whole country and put parking strips on it, and still be home by Christmas.
Ronald Reagan

History teaches that war begins when governments believe the price of aggression is cheap.
Ronald Reagan

A prisoner of war is a man who tries to kill you and fails, and then asks you not to kill him.
Winston Churchill