Could the 1942 Battle of the Coral Sea between American and Japanese aircraft carriers have turned out differently?
An aggressive posture is one thing – but doing something about it is another, as countries factor in the costs and risks of aggression.
IS has proved very adept at fending off massive conventional forces – but that doesn't mean crack private security teams would do any better.
Initially heralded as the beginning of the end for IS, the effort to take back Iraq's second city is flailing.
Passionate disagreement over drone strikes obscures the fact that we actually don’t know much about how they affect U.S. interests.
Despite military successes against Boko Haram, Nigeria needs to face up to the unpalatable truth that military force alone will not win the deadly war, and start discussions about peace building.
British pilots have been involved in airstrikes against Islamic State, despite a parliamentary veto.
PM wants more unmanned intervention but he should be wary of putting all his eggs in one basket.
The head of the US army isn't keen for a key ally to opt out of its commitments.
Barack Obama is considering supplying "lethal defensive weapons" to Ukraine. But how meaningful is that description? There are simply "weapons", all of which can be used for defence or for aggression.