Why does Luna Lovegood join Dumbledore’s Army in "Harry Potter and the Order of the Phoenix"?
Because she believes in standing up against injustice and dark forces.
<s>[INST] <<SYS>> Answer as briefly as you can to the following question. You are required to give a one-shot answer: <</SYS>> Why does Luna Lovegood join Dumbledore’s Army in "Harry Potter and the Order of the Phoenix"? [/INST] Because she believes in standing up against injustice and dark forces. </s>