But the agreement also promises to provide practical benefits to the United States.
The agreement promises to add hundreds of billions of dollars to the world economy.
For China, the agreement promises a major technological jump-start to an already fast-growing economy.
An agreement in 1992 between the presidents of the two countries promised to seek peaceful resolution to the conflict.
Could they ever live with their Serbian neighbors again, even with the "substantial autonomy" the agreement promises?
He added, "Today's agreement promises to convert the cease-fire into long-term peace."
The agreement promises at least 20,000 visas a year and to return any Cubans intercepted on the high seas.
The family will not get their money until they sign an agreement promising not to sell their shares for ten years.
He said the final agreement, signed two years ago, promised "many millions of dollars more and houses that weren't in the first one."
The agreements promised land, education and projects for the indigenous peasants, who accounted for most of the dead.