This is a japanese vintage political poster that was made by Takashi Kono in 1953. Here we can see that the big shark is the U.S and the school of fish is Japan. From what I know, the fifties was the time when everyone was recovering from WWII. Here Kono was symbolizing that U.S had control over its territory and was the dominant one during that time. In other words, Kono was presenting the social status of these two countries and where each one stood. Kono was giving the message that Japan couldn't do anything but submit to this idea and be sheltered by the U.S until they were able to become independent and rise once more.