Complex sentence: After Yahiko's death it was led by Obito with Nagato as the figurehead leader, the Akatsuki's goal is world domination by using the power of the nine Tailed Beasts.
Split into simpler sentences: After Yahiko's death, it was led by Obito with Nagato as the figurehead leader. The Akatsuki's goal is world domination by using the power of the nine Tailed Beasts.