As the US retreats from Nato’s “all for one, one for all” clause, Europe is forging new defence ties. Can the West hold together without Washington? Estonia’s defence minister, Hanno Pevkur, joins the debate.

Explainer 531: Could Moldova reunite with Romania?
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The Democrats’ warring factions: Each have won battles but who will win the war?
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Explainer 530: Who even is Russia’s anti-war party?
07:42