Relations between the UN and the AU have 'improved considerably' in the last few years.
A PSC summit meeting was held on the margins of the UN General Assembly to discuss the crisis in South Sudan.
African leaders advocated for greater investment by the UN in the fight against terrorism.
Stakes are high as a series of elections looms across Africa.
The situation in Mali remains 'dangerously volatile' despite the signing of a peace agreement.
As AMISOM suffers huge losses, questions are being asked about the AU's policy not to release details of casualties.