Which of the following statements is INCORRECT?

NATO, the North Atlantic Treaty Organization, is sixty years old. (24)On April fourth, nineteen forty-nine, twelve countries signed the North Atlantic Treaty in Washington. They were allies from World War Two. They promised to protect each other from the growing threat they saw from another former ally, the Soviet Union.
    Leaders from NATO countries have gathered for two days of meetings through Saturday in Strasbourg, France, and Kehl, Germany. The summit meetings also brought thousands of troops and police for security and to control protests. (25) NATO spokesman James Appathurai said the main subject at the sixtieth anniversary meetings would be the NATO operations in Afghanistan. President Obama announced a new policy on Afghanistan and Pakistan last week.