Do sanctions work? EU bets on oil embargo while Moscow blocks grain exports

In the immediate future, that will not stop Moscow's march on the Donbas, where it is flattening entire cities to achieve its aims. Will the West waver there too? The United States announced it will not supply Ukraine with long-range weapons that can strike inside Russia. We ask about the timing of that announcement and the message it sends to the Kremlin. 

Is it a calibrated response that strikes the balance between defending against the invasion of sovereign states on NATO's doorstep and needlessly provoking a nuclear-armed Russia? Or a sign that with inflation spiralling at home, the West may start to experience Ukraine fatigue?

Produced by Charles Wente, Elise Marné and Guillaume Gougeon

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