The EU has announced an unprecedented new defence drive – but will it be enough to deter Russia? Jon Henley reports

On Thursday, after the US decided to halt military aid and intelligence sharing with Ukraine, European leaders in Brussels agreed to a massive and unprecedented increase in defence spending.

The Guardian’s Europe correspondent, Jon Henley, explains to Michael Safi that this €800bn fund marks a new era for the union and will mean tearing up fiscal rules to loosen borrowing.

Michael Safi travelled to north-east Syria to speak to IS foreign fighters imprisoned there. And discovered that a change in the US administration, and USAid funding cuts, means there is a growing fear of prison breaks

A few weeks ago, Michael Safi travelled to north-east Syria, an area controlled by the Kurdish-led Syrian Democratic Forces. Here, suspected foreign fighters for Islamic State – including those from Britain – have for years been imprisoned without charge and with no idea of when they would be released.

Few prisoners in the camp say they are IS members. Michael and fellow journalist, Will Christou, spoke to a former British surgeon from Leicester who told a surprising story of being ‘tricked’ into crossing into Syria from Turkey. They also met an Australian prisoner, who admitted to being an IS member, and whose family for years did not know his whereabouts.

What can a major leak teach us about how call-centre fraudsters work? Simon Goodley reports

“I’d quite like to just try and get a deposit together, to buy a house and stuff.”

After Mark* saw an advert for a financial trading website, he signed up to what he believed was access to an adviser who called herself Lilliana.

The US has suspended all military aid to Ukraine. What does this mean for European security? Andrew Roth reports

On Monday, Donald Trump’s administration suspended all US military aid to Ukraine, in an attempt to pressure Ukraine’s president, Volodymyr Zelenskyy, to agree to a ceasefire deal on US terms. It comes after an explosive meeting between the leaders in the Oval Office on Friday.

“Donald Trump is such a singular political force right now that he’s managing to repaint many aspects of the argument over Ukraine in American political life,” Andrew Roth, the Guardian’s global affairs correspondent, tells Michael Safi.