http://abcnews.go.com/Politics/story?id=5314996&page=2 The giants of world politics are assembled in Toyako, Japan, for the G-8 summit this weekend, but while they may be big-time players, most of them wouldn't stand out in a crowd. German Chancellor Angela Merkel, center, U.S. President George Bush, Italian Premier Romano Prodi,... (AP Photo/Michael Probst) Just one, Canadian Prime Minister Stephen Harper, breaks the 6-foot barrier. Five of the world leaders aren't even 5'6" tall. President Bush can count himself among the more imposing of the heads of government: He's 5'11", and a nice pair of cowboy boots would easily lift him over 6 feet. If John McCain is elected in November, the Arizona Republican won't have to worry about talking down to most of his counterparts at these gatherings: At 5'9" he is only a little taller than average. Barack Obama on the other hand might make some of the other G-8 leaders uncomfortable. The Illinois Democrat would tower over them at 6'1". Among the leaders gathered this weekend, Russia's little big man, President Dmitry Medvedev, brings up the rear at only 5'2". The G-8 host country Japan's Yasuo Fukuda is only 5'6", and Germany's female Chancellor Angela Merkel measures in at only 5'5". Italy's Silvio Berlusconi's height is something of a controversy. According to most sources Belusconi is 5'5". However according to BBCNews.com, Berlusconi — often made fun of for his height and wearing platform shoes — once commented at a European summit, "Satirists describe me as a dwarf, but I am actually 170 centimeters (5'7") tall. In my day that was considered quite tall." President Nicolas Sarkozy of France does all he can to disguise the four inches his former supermodel wife has over him. She wears flat shoes and he wears the heels, since he's only 5'5". So why hide their true height? Are they scared of being called little Napoleons? "Napoleon Complex is when short men overcompensate for being short by being overly aggressive," said Steven Goldsmith, editor of Short Persons Support. The French emperor has been portrayed in movies such as the eponymous offering of "Napoleon" from 2003 as a feisty little fellow, going down in history as only 5'2". There are plenty of examples to back the theory that bears his name. One is former Russian dictator Josef Stalin, blamed for 20 million deaths, who was a mere 5'5". In Pyongyang, North Korea, Kim Yong Il's height is a state secret. But the Cuban heels and bouffant hairstyle he wears aren't fooling anyone, this leader is only 5'3". Now English psychologist Dr. Mike Eslea of the University of Central Lancashire has put the Napoleon Complex to the test, using a little game to measure aggression among tall and short men. "You're going to start giving them a little rap on the knuckles as a provocation to see how they react," Eslea said. The subjects think it's their dexterity being assessed, but actually it's their aggression. "On the question of aggression I can tell you that the taller guys were more aggressive," he said. So, according to Elsea it's actually a myth. History, too, provides enough examples to debunk it. Sure Josef Goebbels and Charles Manson were very short. But Saddam Hussein was 6'2" and Osama Bin Laden, he's 6'4". And it turns out Napoleon was really 5'6". His enemies claimed he was only 5'2". Could it have been propaganda?