Canada

Wow. Lots to unpack there. Skipping over the part where you believe the government shouldn't need to honour the contracts they've signed with First Nations if they don't feel like it, unchecked resource extraction is also terrible.

The island nation of Nauru discovered huge deposits of phosphate under their land. The government began large scale mining operations in the 80s which saw the country sky rocket to highest GDP per capita in the entire world. The mining industry brought in huge sums of money for the country and it's people. Mining became the biggest industry in the entire nation, with most people leaving their old job and getting a new high paying one in the ever expanding mining industry. An economic phenomena known as "Dutch Disease". If that name doesn't sound like a good thing, it's because it's not.

The market price of phosphate eventually dropped. The mining industry faced massive downturn and layoffs. The country had tore up their farmlands to build mines and farmers had left agriculture to become miners. They were importing most of their food with the money they made in mining. Money they no longer had. They also had a large tourism industry that no longer exists because they no longer have a single beach. All of them were turned into mining operations. Today the country struggles with poverty and is unable to rebuild any of the industries that mining killed. Their main source of income today is holding prisoners from Australia.