Will the world be safer if Trump meant the things he said on the campaign trail, or if he didn't?
In early December, the nations of the world are poised to take an historic step on nuclear weapons. Yet Australia sticks out like a sore thumb among Asia-Pacific nations in arguing against change.
Donald Trump will soon have command of thousands of nuclear weapons. This presents a new and unknown threat to global security - and an urgent incentive for all states to ban nuclear weapons.
Diplomacy between Europe and Trump's administration will be tricky, but not impossible.
America appears as divided over key aspects of foreign policy as it is at home. So how does President-elect Trump hope to handle that divide, and what will be the major issues facing him?
Forget what you heard about isolationism, the new president-elect will realise the US needs the world and vice versa.
Europe has a lot riding on this election: NATO, relations with Russia and free trade all hang in the balance.
The Non-Aligned Movement member states enjoy cohesion on few issues. Historically, their heterogeneity ranged from absolute monarchs to socialist presidents.
When it loses the UK, the EU loses an important military power, which makes the remaining countries keener than ever to collaborate.
Obama has said he expects European allies to chip in their fair share of defense spending, and European public opinion supports it. But as a Tufts expert points out, many challenges in Europe remain.
The second organisational pillar of the European order isn't as threatened as the EU – but there's trouble ahead.
Forecasts that Britain's withdrawal from the EU will send the world into a state of war are wildly overblown.
A new book warns that a lack of Western resolve could lead to World War III.
A number of tripwires could set off a chain of events leading to war.
NATO has announced a new mission to monitor people-smugglers in the Aegean – but something smells fishy.
Turkey is the one of the U.S.'s most important allies in the Mideast, but recent actions such as the downing of a Russian fighter raise important questions about its reliability as a partner.
Recent talks in Vienna may help end the Syrian civil war, but diplomacy will not eliminate ISIS.
Russia's Syria play may have hit some snags already, but the US is hardly placed to kick up a fuss.
Airspace incursions are spilling over into wider tensions.
The face-off between Russia and the West in Syria is giving both sides a chance to try out their new high-tech weaponry.