YOU SAID:
the attack on pearl harbor was a surprise military strike
INTO JAPANESE
真珠湾攻撃は驚きの軍事攻撃だった
BACK INTO ENGLISH
The Pearl Harbor attack was a surprising military attack
INTO JAPANESE
真珠湾攻撃は意外な軍事攻撃でした
BACK INTO ENGLISH
The Pearl Harbor attack was a surprising military attack
That didn't even make that much sense in English.