A coalition government is a government formed by two or more political parties that have agreed to work together. This can happen when no single party has won a majority of seats in an election, or when two or more parties decide to form a government together for other reasons.

Coalition governments can provide a more stable government than a single-party government because they are less likely to be brought down by a vote of no confidence. They can also allow for a wider range of views and opinions to be represented in government, and can help to build consensus and cooperation between different political parties.

Coalition governments can be difficult to form, especially when there are many different political parties involved. They can also be unstable, as they can be brought down by a vote of no confidence from any of the parties involved. Coalition governments can also be slow to make decisions, as they need to take into account the views of all the parties involved.

Coalition governments can make it more difficult for the government to take decisive action in times of crisis, as they need to take into account the views of all the parties involved. They can also lead to disagreements and divisions within the government, which can weaken its ability to respond to security threats. Coalition governments can also make it more difficult for the government to build consensus and support for its security policies, as they need to take into account the views of all the parties involved.

The government of Atal Bihari Vajpayee from 1998 to 2004 was a coalition government formed by the Bharatiya Janata Party (BJP) and its allies. The government of Manmohan Singh from 2004 to 2014 was a coalition government formed by the Indian National Congress (INC) and its allies. The government of Narendra Modi from 2014 to the present is a single-party government formed by the BJP.