As the North Atlantic Treaty Organization celebrates its 70th anniversary with a leaders' meeting in London, five US scholars shed light on NATO's history and its potential future.
Revolutions are built not on deep misery but on rising expectations. History may not provide much hope of immediate change in Hong Kong – but protesters may have a longer view.
Since the 1940s, Congress has largely let the president make decisions, while members of the House and Senate endorse or condemn those actions from the sidelines.
At the Sochi summit, African states embraced Russia's newly established relations.
Most of the world might hate Trump, but in some places, based largely on his policies, there is hope and even admiration.
As US national security advisor, John Bolton was too much of a warmonger for Donald Trump.
After a week spent trampling the international order, Trump capped his performance by giving Vladimir Putin the benefit of the doubt.
Efforts to keep Trump's itinerary as tight and cloistered as possible failed to avoid a classic diplomatic calamity.
Trump's assault on the global trade system could be just a prelude to his next moves.
The 'rules-based international order' that Trump is supposedly tearing up is an ahistorical fantasy.
While not exactly surprising coming from the Trump administration, backing out of a major UN body is bound to have serious consequences.
Without strategic clarity from the US, the Saudis and their allies are under little pressure to thaw their frozen relationship with Qatar.
A remarkable year on the Korean peninsula has been marked by both bitter enmity and genuine goodwill. Now, the tension is being ratcheted up again.
Donald Trump has always traded on his image as a master dealmaker – but many deals have been done with North Korea before.
Reportedly passed over for secretary of state because of his moustache, John Bolton has made it into Donald Trump's administration at last.
Relations between the US and Africa are unlikely to improve while Trump remains president. But that doesn't mean the continent should remain passive.
The goal of the summit should not be the nuclear disarmament of North Korea.
Thanks to South Korea, there is a chance for peace with North Korea. Whether the Trump administration can take it is another matter.
Donald Trump doesn't have one foreign policy – he has several, and they all clash.
As tensions between the US and Russia escalate, both sides are developing technological capabilities, including artificial intelligence that could be used in conflict.