Such a reduction would codify the decisive Soviet superiority in land-based first-strike nuclear weapons.

The most powerful land-based weapons were railway guns weighing hundreds of tons apiece.

The Range, however, covers a massive area, and is the largest land-based weapons test facility in the world.

In addition, he said, "every part of the Baltic can be reached by land-based nuclear weapons from the Soviet Union."

The Navy contends that the new technology could become part of a ballistic missile defense system or be linked to land-based weapons.

The United States has a triad of air-, sea- and land-based nuclear weapons.

Many consider it the "greatest land-based weapon" ever built.

The first order of business Tuesday will be the signing of a treaty banning all intermediate-range, land-based weapons.

The United States should therefore plan to increase the dispersal of its land-based nuclear weapons as their numbers decline under the strategic arms treaty.

But the broad outline of the bargain is clear: Both sides would eliminate all land-based weapons with a range of 300 to 3,400 miles.