Prague: Mr. Obama said the U.S. would proceed with the development of a missile defence system in Europe as long as there is an Iranian threat of nuclear weapons.

He said if that threat is removed, the “driving force for missile defence in Europe will be removed.”

In his speech before cheering crowds in historic Prague, Mr. Obama said the U.S. would present Iran with “a clear choice” to cease its nuclear and ballistic missile activity or face increased isolation and a nuclear arms race in West Asia. Mr. Obama said Iran’s nuclear and ballistic missile activity posed a real threat to the U.S. and its allies, and Iran’s neighbours. — AP