Was julius ceasar's death a tragedy or a triumph? how?

The assassination of Julius Caesar was the result of a conspiracy by many Roman senators led by Gaius Cassius Longinus, Decimus Junius Brutus Albinus, and Marcus Junius Brutus. They stabbed Julius Caesar to death in a location adjacent to the Theatre of Pompey on the Ides of March (March 15), 44 BC.

Both countries had to aprove annexation.