“The Ems Dispatch ..., sometimes called the Ems Telegram, was published on 13 July 1870 and incited the Second French Empire to start the Franco-Prussian War and to declare war on the Kingdom of Prussia on 19 July 1870. The actual dispatch was an internal message from Prussian King Wilhelm I's vacationing site to Otto von Bismarck in Berlin, reporting demands made by the French ambassador. Bismarck, the chancellor (head of government) of the North German Confederation, released a statement to the press that stirred up emotions in France and Germany.” 2
-------------------------------/
1. https://military.wikia.org/wiki/False_flag
2. https://en.wikipedia.org/wiki/Ems_Dispatch
*A false flag operation is an act committed with the intent of disguising the actual source of responsibility and pinning blame on a second party. The term is popular amongst conspiracy theory promoters [analysts] in referring to covert operations of various governments and cabals.[1] ... The term today extends to include countries that organize attacks on themselves and make the attacks appear to be by enemy nations or terrorists, thus giving the nation that was supposedly attacked a pretext for domestic repression and foreign military aggression.[7] ... https://en.wikipedia.org/wiki/False_flag
“The Franco-Prussian War or Franco-German War,[a] often referred to in France as the War of 1870, was a conflict between the Second French Empire (and later, the Third French Republic) and the German states of the North German Confederation led by the Kingdom of Prussia. Lasting from 19 July 1870 to 28 January 1871, the conflict was caused primarily by France's determination to restore its dominant position in continental Europe, which it had lost following Prussia's crushing victory over Austria in 1866.[10] According to some historians, Prussian chancellor Otto von Bismarck deliberately provoked the French into declaring war on Prussia in order to draw four independent southern German states—Baden, Württemberg, Bavaria and Hesse-Darmstadt—into an alliance with the North German Confederation dominated by Prussia. Some historians contend that Bismarck exploited the circumstances as they unfolded. None, however, dispute the fact that Bismarck must have recognized the potential for new German alliances, given the situation as a whole.” https://en.wikipedia.org/wiki/Franco-Prussian_War