Assassination of Wolfgang von Strucker

The Assasination of Wolfgang von Strucker was a action of the War against Ultron

Background
After the Attack on the HYDRA Research Base the baron Wolfgang von Strucker was captured by the Avengers. After the battle Tony Stark and Bruce Banner creates Ultron, a peacekeping program, but he attack the avengers After the battle and the destruction of his body, he builds a new body, and recruits the twins Wanda and Pietro Maximoff

Assasination
Ultron goes to the Strucker's cell and asks where find Vibranium and he reveals all about Ulysses Klaue's probition and, later, Ultron kills Strucker

Aftermath
Ultron goes to the Salvage Yard and gets Vibranium but is confronted by the Avengers and starts the Battle at the Salvage Yard