The year 2018 has proved to be a time of turbulence in U.S.-China relations, with the Korean Peninsula, trade and the South China Sea all making headlines.
But 2018 will prove to be more than just a year of turbulence: We will look back on it as a turning point in U.S.-China relations, the closing of an era of expanding cooperation. That era dates from China's entry into the World Trade Organization in 2001, and reached its most expansive phase in the wake of the global financial crisis, under U.S. President Barack Obama. There were even fears in the world of a "G-2," of a U.S.-China condominium that would leave little room for anybody else. There is little risk of a G-2 now.
