 
 <prompt> Wetin happun for late 19th century? Based on di previous question, write one context wey contain di answer. E fit be 1 - 20 sentences. Context: <response>: The French Marines and naval infantry wey dey plan to invade northern Germany, dem send dem go reinforce the French Army of Châlons but dem land for Sedan come fall into captivity with Napoleon III. Because of say officers dey scarce after dem capture most of the professional French army for Siege of Metz and Battle of Sedan, dem come send naval officers from their ships to command the hastily assembled reservists of the Garde Mobile. As the autumn storms for North Sea dey force more French ships to return, the blockade of the north German ports reduce and for September 1870, the French navy abandon the blockade for winter. The rest of the navy come retire go ports along the English Channel and dem remain for port for the rest of the war. 