claim: 2 Hearts was the first commercial single since Minogue was diagnosed with breast cancer and it was successful.
evidence: Royal Bavarian Jagdstaffel 78 , commonly abbreviated to Jasta 78 , was a `` hunting group '' -LRB- i.e. , fighter squadron -RRB- of the Luftstreitkrafte , the air arm of the Imperial German Army during World War I .. Luftstreitkrafte. Luftstreitkrafte. World War I. World War I. Imperial German Army. Imperial German Army. The squadron would score over eight aerial victories during the war , including one observation balloon downed .. one observation balloon downed. balloon buster. The unit 's victories came at the expense of two killed in action , one killed in flying accidents , and three wounded in action .