On Monday, Meta will face the Federal Trade Commission in a legal fight that could reshape the social media landscape.

Over the next two months, the US government will make its case that the company’s 2012 acquisition of Instagram and 2014 acquisition of WhatsApp squashed potential threats to its dominance. Meta, which went by the name of Facebook at the time, will defend itself by arguing that it helped grow those acquisitions into large businesses used by billions of people while facing…