Political parties form coalitions primarily to gain a majority and effectively govern. This strategy often emerges in parliamentary systems where no single party achieves an outright majority. By aligning with other parties, coalitions can combine resources and increase their legislative influence, enabling them to pass laws and implement policies. Coalition-building requires negotiation and compromise, as parties must align on key issues while retaining their identity. Successful coalitions can enhance stability and foster collaboration among diverse political beliefs, ultimately promoting governance that reflects a broader spectrum of interests and concerns within society.