In the 1960's, the nation embarked upon a vast and utterly unprecedented national experiment in the use of schooling to alleviate poverty.

The nation must embark on its greatest journey, through present day Iran and Iraq, to the edges of India.

Usually the nation has embarked on these efforts only after times of turmoil.

When the nation embarked on airline deregulation, Congress set no standard for airline service.

Since the beginning of China's economic reform period, which began in 1979, the nation has embarked on a modernization campaign at an unprecedented rate.

But buoyed by polls showing the nation still reluctant to embark on impeachment, they also called for quick decisions to resolve the crisis.

It was the most imposing enterprise of the kind the nation had ever embarked in.

Our nation learned from Hitler's racism and, in time, embarked on a mission to end law-sanctioned discrimination in our own country.

Other more comparable nations, such as Belgium, embarked on large railway-building projects soon after the technology appeared.

Now our nation has embarked upon a national discussion on what type of leadership will guide us as we progress through this difficult economic period.