The famous examples of unity and cooperation are as follows:

1. The story of reconciliation has been passed down to this day. If two people fight for power and profit and only care about their own interests, the country may perish, not to mention their own interests, so unity and cooperation will make them all eat grass.

2. During the Three Kingdoms period, Zhang Liao, under Cao Cao, entered Hefei with great joy. At one time, Sun Quan sent his troops to attack with 1, troops, and the two of them were two of the five heroes. They had the same achievements and were known for their contradictions. However, in the face of strong enemies, they were still able to complement each other and help each other, and finally defeated the enemy.

3. One monk carries water, two monks carry water and three monks have no water.

4. An ant comes to move rice, but it can't afford to move it around. Two ants came to move rice, and their bodies were swaying. Three ants came to carry rice and gently carried it into the hole.

5. The unity and friendship between Marx and Engels are unmatched by any unity and friendship in the world. Marx admired Engels' talents and said that he was following Engels' footsteps.