5. How long did the Japanese plan the attack on Pearl Harbor?

As Steve Twomey details in his 2016 book Countdown to Pearl Harbor: The Twelve Days to the Attack, Yamamoto believed that Japan's only chance for success was to stage a surprise assault that would knock the U.S. fleet out of action for a year or more. Japanese forces trained for about a year to prepare for the attack.

adopted the practice of proskynesis, a persian court custom that involved bowing down and kissing the hand of others, depending on their rank.

you didn't list the options. however, a few communist countries today are: the people's republic of china, north korea, and cuba.