United States
President Trump may have killed the TPP but support for free trade in the Asia-Pacific is far from dead.
In an election year, the US will face a bold Kremlin, fractious Middle East and assertive China.
China’s assertiveness in the South China Sea will result in the US trying to craft a regional response.
While the lifting of sanctions may signal a broader shift in U.S.-Iranian relations, the historically fraught relationship faces many challenges.