People around the world, especially Americans, may never forget the horrible event of November 9, 2001, which was one of the biggest terrorist attacks in the United States and caused numerous deaths and destruction. . Before that, even though Americans had to endure numerous terrorist attacks; why has the government still failed to understand this from previous experiences before it happened and find the solutions to prevent it? What was the goal of the terrorists? How did they prepare and calculate for a terrible attack like that? In addition, after the September 11 attacks, the evolution and development of terrorism around the world influenced many people's beliefs and led to many political problems. Based on many terrorist attacks that have occurred in the past, there are some important general historical elements of terrorism, including international environment, terror, state and individual, which we all should perceive and understand in order to exterminate. The international environment of terrorism is an important element in the history of terrorism because until now, many terrorist attacks have taken place in various ways in many countries around the world with different objectives. Terrorism is not a new term because terrorist attacks occurred and developed a long time ago. Additionally, terrorism can be considered as a conspiracy that could target a large population and create terror to threaten innocent citizens and the government of a country. Terrorists from some countries have attacked other places because of weapons, territory, oil, nuclear power and many more. In some Asian countries like China, Philippines, Malaysia, etc., citizens have suffered from...... middle of paper ...... terrorism in these areas is still ongoing and waiting for the right opportunity to attack. - The subject of terrorism will never stop because it could be part of the political problems of many countries. The deaths, damage and losses caused by the terrorist attacks will also remain in our hearts. In reality, preventing and protecting against terrorism should never be easy, because they are always waiting for the moment to carry out their evil plans. However, all countries must do their best and help each other prevent and destroy as many of them as possible. Understanding international terrorism, the threat of state terrorism and individual terrorism could help achieve the goals of terrorist organizations. With this in mind, people can also hope for a peaceful world, without wars, terrorism and innocent people dying because of it...