The war in Sudan is being sustained by more than those fighting it.

This video from the British Office Sudan, filmed at the damaged British Embassy in Khartoum, is a stark reminder of what three years of war has done to Sudan.

The destruction is visible. The human cost is immeasurable.

But the question now is not simply whether the international community recognises the devastation. It is whether international policy can help change the conditions that allow the war to continue.

The UK has repeatedly called for an end to the conflict, protection of civilians and a political process.

The next question is what happens beyond statements.

Who is supplying the weapons?
Who is financing the war?
Who is facilitating the movement of arms and fighters?
And what leverage can governments use to make continuing the war more difficult and more costly?

For the UK Government, this means looking beyond humanitarian response and diplomatic statements towards the external enablers of the conflict.

Sudan Futures has called this cutting the oxygen of war.

Not as a slogan, but as a policy question.

If we want the war to end, we must examine what is allowing it to continue.