Emperor san, wakarimashitaka? は wa "ha" (は) to kaite "wa" to yomimasune.
Regarding the translation, 'I don't know what worth's fighting for' ....
闘う (争う, 戦う) 価値 ことに一体何の価値があるのかわからないです。 is partially from the translation of a song and partially my own.
闘うだけの価値がある may be alright as well.