World conflicts dominate UN General Assembly as Biden gives final speech

Strikes in Lebanon and the war in Gaza dominated the first day as world leaders gave speeches to the United Nations General Assembly.

US President Joe Biden was one of them, in his last speech to the UN, calling on nations to band together.

But the UN's Secretary General scolded leaders, telling them that impunity and inequality are creating 'a powder keg that risks engulfing the world'.

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