The 2001 federal election was a watershed moment for Australian national security that has set a policy agenda for almost two decades.
By inciting religious hatred, the recent attacks in Sri Lanka appear to have more in common with Al-Qaeda than past ethno-religious violence, which has sought specific political change.
A 2016 accord with the FARC guerrillas was supposed to end Colombia's 52-year civil war. But a deadly car bomb in Bogotá shows that armed insurgents still threaten the South American country.
An unprecedented onslaught from the US hasn't destroyed the terrorist organization. What is the secret of its resilience?