A coalition government is formed when two or more political parties come together to create a majority in a legislative body. This often occurs in systems where no single party wins enough seats to govern alone, such as in many parliamentary systems. By collaborating, these parties can combine their resources and support to pass laws and make decisions. Coalition governments can lead to more inclusive decision-making, as they represent a broader range of views and interests. However, they may also face challenges, such as disagreements among coalition partners, which can complicate governance and lead to instability, potentially resulting in early elections.