More than 14,000 Iraqi police officers have been killed since the US invasion in 2003.
The IS 'caliphate' centred on Mosul, had its own justice system served, efficiently, by its own police force.
How international inspectors uncovered Iraq's weapons of mass destruction programmes.
Attacks on churches and targeted killings of Christians began as Iraq descended into sectarian violence after the fall of Saddam Hussein.
The 1991 Gulf War was seen as the start of an age of peace, but paved the way for much future conflict.
Archaeologists working with museums in Iraq have protected more than 270,000 artefacts using SmartWater liquid technology.
The Pentagon has spent more than $800 billion on military operations in Iraq. But that doesn't include money needed to care for veterans, rebuild the country or pay interest on war debt.
The destruction of a country's historical and cultural heritage sites is a distressing byproduct of conflict, but there are now strategies in place to prevent it happening.
US officials have consistently lied over decades about progress in the Afghanistan war. The lies are no surprise, writes a foreign affairs scholar – but they have profound consequences.
Two new films feature the bravery and tenacity of government employees who risk everything to expose official wrongdoing.
Iraq's 2005 constitution created a flawed political system built on sectarianism.
As US national security advisor, John Bolton was too much of a warmonger for Donald Trump.
The National Intelligence Council works inside government but is little understood outside. Yet it has helped respond to almost all the major foreign policy challenges of the last 40 years.
Wars play a central role in increasing numbers of refugees worldwide. Is it time to think about a "destruction tax"?
Science fiction has made us vigilant of 'killer robots' in our midst, but they're far closer than many of us realise.
A new study looks at obituaries of private military contractors killed at war. The majority are white men with significant military experience.
Iraq beat the Islamic State. Now, its Shia government is jailing and even executing all suspected terrorists – most of them Sunni Muslims. The clampdown may inflame a centuries-old sectarian divide.
Keeping the water and power on, managing sewers and collecting garbage will help communities shattered by the Syrian civil war rebuild – and keep out the Islamic State, says a former aid official.
The US was once the dominant force in the Middle East. That old order has disappeared. Now the new powers are Iran, Turkey, Saudi Arabia and Russia – and the US needs a new policy for the region.
As a liberal democracy, Australia needs its own report on US torture in Iraq and has a legal and moral obligation to prevent torture.