Bangladesh, June 17 -- In a sign of both opportunity and friction in US-Russian relations, the Biden-to-Trump presidential transition has brought dramatic changes in tone-though not without setbacks. The United States has postponed a scheduled round of bilateral talks with Russia that were aimed at restoring diplomatic channels and addressing long-standing tensions. At the same time, US President Donald Trump has renewed his push for Moscows reintegration into the group of major Western economies-reviving a contentious debate about the post-Cold War world order and the legacy of Russias expulsion from the G8.

The latest round of US-Russia negotiations, originally scheduled to take place in Moscow, has been postponed by the United States ...