For all its strength and swagger, China is struggling to handle an impulsive America
Will they become redundant as the technology develops?
Trade wars are alarming, but so are might-makes-right deals
The 15-70-15 rule and other ways to prise powerful fingers from the public coffers
It has transformed crime not only in Russia and Ukraine, but around the world
Where to buy drones, fighters and tanks on the cheapÂ
The historic agreement emerged only through bitter compromise
African leaders need to balance vast opportunities against dire risks