What I am looking for on the below answer is a unique thought, I have done my research and seen other answers on other sources and on this website, I am looking for something unique. Please do not just copy from someone else's work because I will google the answer you give me. If you use resources please share as that will help me analyze better.

I want to touch on the market structures called Monopoly and Monopsony and the social costs of market power, and government efforts, such as anti-trust laws, to reduce market power.

Discuss an instance (from real life) of a government (the US government or a foreign one) taking action to promote competition / break-up monopolies. Explain the government's motivation in this.