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He stopped attending summits such as the UN General Assembly and African Union meetings.

It is a country where the multilateral organisations - the United Nations and the African Union - could still be relevant.

The African Union, which represents all countries on the continent, called on the US to "engage in constructive dialogue with the countries concerned".

So far, only the African Union, which represents all 55 nations on the African continent, Chad, Somalia and Venezuela have responded.

Meanwhile, African Union called on the US to "engage in constructive dialogue with the countries concerned".