WMG / 100 Bullets

The country that the Trust wanted the Minutemen to conquer was Iraq

While it's left ambiguous what, exactly, the Minutemen refused to do for the Trust before they were disbanded, it's strongly implied that the Trust wanted them to conquer a foreign country (pulling off a "repeat" of the massacre at Roanoke, which allowed the Trust to conquer America). We aren't told exactly when the showdown in Atlantic City took place—but it was definitely several years before the start of the series, which began in 1999. The First Persian Gulf War began in 1990, which would be a pretty plausible date for the Atlantic City showdown.

In the First Persian Gulf War, the US-led coalition ultimately chose not to invade Iraq and depose Saddam Hussein after stopping his invasion of Kuwait, even though many influential figures in the United States strongly advocated that course of action. Considering the 2003 invasion of Iraq was (rightly or wrongly) widely perceived as an American power-grab aimed at capturing the country's natural resources, it's not hard to imagine that a series like 100 Bullets might have depicted the Trust as being responsible for orchestrating the Iraq War, especially since the series hit the height of its popularity when the war was in its early stages. The Minutemen's rebellion could be the in-universe reason for why the United States didn't invade Iraq until 2003.

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