CAMBRIDGE – As the United States enters the home stretch of the 2020 presidential election campaign, and with neither party’s nominating convention featuring much discussion of foreign policy, the contest between President Donald Trump and Joe Biden apparently will be waged mainly on the battleground of domestic issues. In the long run, however, historians will ask whether Trump’s presidency was a major turning point in America’s role in the world, or just a minor historical accident.

CAMBRIDGE – Since 2017, America’s National Security Strategy has focused on great power competition, and today much of Washington is busy portraying our relationship with China as a new cold war. Obviously, great power competition remains a crucial aspect of foreign policy, but we must not let it obscure the growing transnational security threats that technology is putting on the agenda.

TEHRAN, July 8: Iran began enriching uranium Monday to 4.5%, breaking the limit set by its 2015 nuclear deal with world powers, semi-official news agencies in the country reported.