The servicemen have moved alone or with their families to housing on American military installations.

American installations throughout the world have been alerted to the increased chance of such attacks, he said.

Under military rules for reporters here, the location of American installations cannot be given.

I know that a soldier can take his discharge almost anywhere there is an American military installation.

Soviet inspectors would have to make similar checks of American installations.

The two bases are the largest American military installations overseas.

He said that about 30 American installations will be subject to inspection.

So far, attacks on American installations have been minor.

Some officials worried that such procedures would open up sensitive American installations to inspection.

All American installations in Germany have been on a high state of alert for some time.