Why did Prussia go to war with France in 1870?

Austria made an alliance with France to form a united front against Prussia's expansion (Made the news public)

•Bismarck declined Napoleon's (France) offer to buy Luxembourg

• After Spanish queen Isabella ||'s abdication, Leopold became the new monarch and he accepted an offer from Bismarck-> angered France

Explanation:

•Bismarck received the Ems Telegram (France) in regards of the Spanish succession

•Bismarck change the wording and published it - > making France sound demanding

•Both parties became mad

•Bismarck would not agree to Napoleon |||'s (France) government negotiations