Explained: Why Trump’s Peace Push With Putin Just Fell Apart

U.S. President Donald Trump has indefinitely postponed a planned summit with Russian President Vladimir Putin, saying there’s “no point in a wasted meeting” as divisions over Ukraine deepen. The decision marks another blow to Trump’s personal bid to broker peace in the two-year-old conflict. But behind the scenes, five key obstacles — from Putin’s hardline demands to Trump’s lack of leverage — continue to block a breakthrough. We break down the reasons behind the collapse of talks, what’s at stake for Ukraine, and why both sides seem unwilling to compromise.