"They have developed some sort of air defense system that is impregnable."

The ground-based air defense systems are a last resort only.

Several military analysts said they believed that the destruction of Iraq's air defense system was far from complete.

The objects were not spotted by the Soviet air defense system either.

"It's still a very capable air defense system," the official said.

The result was that the construction of a modern air defense system lagged.

He added, "our response, as appropriate, will be against any of the air defense systems that we think makes us vulnerable."

This has been seen only in China so far, where multiple stations are tied together with the air defense system.

During the war, Iran did not have an integrated air defense system.

It is the premier air defense system in the world.

"They have developed some sort of air defense system that is impregnable."

The ground-based air defense systems are a last resort only.

Several military analysts said they believed that the destruction of Iraq's air defense system was far from complete.

The objects were not spotted by the Soviet air defense system either.

"It's still a very capable air defense system," the official said.

The result was that the construction of a modern air defense system lagged.

He added, "our response, as appropriate, will be against any of the air defense systems that we think makes us vulnerable."

This has been seen only in China so far, where multiple stations are tied together with the air defense system.

During the war, Iran did not have an integrated air defense system.

It is the premier air defense system in the world.