With Trump deciding against protecting allies, old rivalries are converging across the region

Throughout the Middle East’s modern history, a constant remained – the US held a prominent stake and would throw its weight around to protect its interests and allies. The maxim held true as ideologies rose and fell, Gulf monarchies, Israel, and Arab nationalist police states took root – and war and insurrection periodically raged.

But it ended during Donald Trump’s third year, a time when an isolationist, unworldly president began to see regional interests through a much narrower lens. The effect has been profound and 2020 will continue the process of recalibration by traditional friends of the US without a country whose clout they used to defer to and whose agenda they could more or less understand.