Politician always changed after coming into power. Some leader makes some horrible and brutal decision during his power. Recent Example is Kim Jong-un of North Korea. Kim Jong has ignore whole world and continues the experiment on Nuclear and hydrogen bomb.
In Modern history there so many dictators come in the power from Adolf Hilter and Mussolini to Kim Jong-un. They are brutal and worst decision maker in history of mankind.
Recent hot statement between Donald trump and Kim Jong-un threaten the world for the nuclear war. On the other side North Korea test his nuclear-armed missile flying over on Japan's territory. This scenario would likely lead to nuclear conflict in north-east Asia.
10. Muammar al-Gaddafi – libiya
Muammar al-Gaddafi governed Libya as its primary leader from 1969 to 2011. Gaddafi governed Libya as Revolutionary Chairman of the Libyan Arab Republic. During his period Gaddafi violated the human rights of Libyan citizens and financed global terrorism.
9. kim il sung – North korea
kim il sung was the leader of North Korea from the birth of North Korea to his death in 1994. Under kim il sung leadership, North Korea became a workers' state. He has close relation with USSR. kim il sung is the grandfather of Kim Jong-un who is the current ruler of North Korea.
8. Idi Amin - Uganda
Idi Amin Dada was a Ugandan political leader and military officer who was the President of Uganda from 1971 to 1979. The number of people killed were killed in Uganda during his rule.
7. Saddam Hussein -Iraq
Saddam Hussein was the fifth President of Iraq. On 5 November 2006, Saddam was convicted of crimes against humanity related to the 1982 killing of 148 Iraqi Shi'ites, and sentenced to death by hanging.
6. Kim Jong-il – North Korea
Kim Jong-il was the supreme leader of the Democratic People's Republic of Korea (DPRK) from 1994 to 2011. During Kim's regime, North Korea suffered from famine and had a poor human rights record. He is a father of Kim Jong-un.
5. Benito Mussolini – Italy
Benito Amilcare Andrea Mussolini was an Italian politician, journalist and dictator of Italy. Mussolini is a leader of the National Fascist Party ruling the country.
4. Mao Zedong – china
Mao Zedong or Mao Tse-tung was a Chinese communist revolutionary, poet, political theorist and founding father of the People's Republic of China. A controversial figure, Mao is regarded as one of the most important individuals in modern world history.
3. Kim Jong-un - North Korea
Kim Jong-un is a supreme leader of the Democratic People's Republic of Korea commonly known as North Korea. He is modern threat to the world. Kim Jong-un is ruthless dictator of North Korea. Situation of human rights in North Korea is very poor under Kim Jong-un rule.
2. Joseph Stalin – Russia
Joseph Vissarionovich Stalin political leader who governing the Soviet Union as its dictator from the mid-1920s until his death in 1953. Stalin is widely considered to be one of the most significant figures of the 20th century. his autocratic government has been widely denounced for overseeing mass repressions, hundreds of thousands of executions and millions of deaths through famines and labor camps.
1. Adolf Hitler – Germany
Adolf Hitler was a German politician who was the leader of the Nazi Party. As dictator, Hitler initiated World War II in Europe with the invasion of Poland. Under Hitler's leadership and racially motivated ideology, the Nazi regime was responsible for the genocide of at least 5.5 million Jews and millions of other victims.