1. Attach importance to national sovereignty and territorial integrity: In the Iraq war, the United States-led Coalition forces invaded Iraq, which undoubtedly violated national sovereignty and territorial integrity. Today, with the development of globalization, we should respect the sovereignty and territorial integrity of each country, abide by international laws and norms, and avoid unilateral military actions.

2. Attach importance to international cooperation and multilateralism: during the Iraq war, the United States took unilateral actions, which led to the division and confrontation of the international community. In the face of global problems, we should adhere to international cooperation and multilateralism, resolve differences through dialogue, consultation and cooperation, and jointly meet challenges.

3. Attach importance to human rights and human values: During the Iraq war, the United States invaded Iraq in the name of counter-terrorism, resulting in a large number of civilian casualties and refugees being displaced. We should adhere to the principles of human rights and human values, put people's lives, safety and well-being first, and avoid taking unilateral actions in pursuit of military victory.

4. Pay attention to the costs and consequences of the war: In the Iraq war, the United States-led Coalition forces invaded Iraq militarily, resulting in a large number of casualties, economic collapse and social unrest. We should deeply understand the costs and consequences of war, adhere to the concepts of peace, development and cooperation, and avoid solving disputes and conflicts by military means.

The impact of the Iraq war:

1. Geopolitical influence: The Iraq war has changed the geopolitical pattern in the Middle East. The United States-led Coalition forces overthrew Saddam Hussein's regime and changed the balance of power in the Middle East. This action has also had an impact on other countries in the Middle East, and promoted the process of political change and democratization in this region.

2. Humanitarian disaster: The Iraq war caused a large number of casualties and displaced refugees. The war has caused great damage and loss, and many infrastructure and civilian facilities have been destroyed, resulting in millions of people facing difficulties in survival. This humanitarian disaster has also had a negative impact on the international community and triggered a reflection on the ethics of war and human values.

3. The challenge of the war on terror: The Iraq war is regarded as a part of the war on terror. However, the war did not solve the problem of terrorism, but aggravated the turmoil and instability in the Middle East. This experience also reminds people that simple military means cannot solve the complex terrorism problem, and a more comprehensive and long-term solution is needed.

4. Changes in international relations: The Iraq war also had an impact on international relations. The United States-led Coalition forces cooperated with many countries in the war, but there were also differences and contradictions. The war also changed the relationship between the United States and other countries, and had an impact on international cooperation and multilateralism.