11.   The shelters housing each flight will protect the equipment against a surprise attack by Soviet aircraft or missiles.

12.   The US were concerned about the possibility of a surprise attack by air or by sea.

13.   This would increase the warning time of any possible surprise attack.

14.   We launched a surprise attack on their camp just before dawn.

15.   A documentary film about the surprise attack on Pearl Harbor.

16.   The surprise attack came at dawn.

17.   Furthermore, no contemporary writer, even one who supported Lothar, alleges that Charles and Louis won this battle by a surprise attack.

18.   But that would make them vulnerable to a surprise attack.

19.   It was also important to demonstrate the ability of nuclear forces to ride out a surprise attack.

20.   Also last year, Congress asked President Bill Clinton to exculpate the commanders at Pearl Harbor of any responsibility for the surprise attack.