Ollective Security and Military Alliance

Provide a bullet-point summary using arguments and counter-arguments of the following ideas: Realism and Liberalism regarding how each of them view the idea of collective security and military alliance. For example:

Argue for maximising power and desire military alliance
Counter argument: They dont mind breaking an argument if it threatened their security.

-Believe in international cooperation. Maximising security.
Counter argument:

Also at the end, Please discuss social constructivists and their point of view on the idea of collective security.
Use this book as the main reference:
The Globalisation of World Politics: An Introduction to International Relations, by John Baylis. In the chapter titled Collective security and military alliance.