Born in Abville in northern France, after graduating from a public secondary school in the provincial city of Amiens, he enrolled in the enviable French Institute of Technology (ETH) with honors, bathed in the famous motto of "Pourla Patrie, les Sciences et la Gloire" (For the Fatherland, Honor and Science) set by Emperor Napoleon I, and absorbed the knowledge of modern military and industrial science. If taken literally, the French Polytechnic obviously does not seem to have much to do with military education, but this school was historically designated by Napoleon as a military school, and in fact it was the cradle of extremely important officers in France at that time, and it was not inferior to other military schools.

Like many alumni of the Polytechnic, he joined the army after graduation and became an officer in the French Navy due to his major, and was awarded the rank of second lieutenant. After that, his career was smooth sailing, he was promoted to lieutenant, then to the rank of lieutenant and lieutenant colonel, and was appointed chief of staff of the English Channel detachment.

In fact, the Admiralty was very unoptimistic about the emperor's appointment of Guba as the commander of the rapid detachment, because Guba was an officer who did not have a good impression of the colonial war. In response to France's overseas colonial wars of aggression, the attitude of solitude was very obvious, that is, he belonged to the anti-war faction in the navy, and expressed no interest in or support for such a war, of course, if he was to participate in it, out of the duty of a soldier to obey orders, he would definitely passively accept this task. Faced with this situation, any decision-maker would probably appoint a more active general than a solitary one, but the French Admiralty had no room for such a decision at the time, and could only passively submit to the emperor's appointment, because the French navy was facing an unprecedented general shortage.

Unlike the navies of many countries, the highest rank in the French Navy at that time was Vice Admiral, and the few vice admirals were already the commanders of important departments, so they naturally could not easily change positions. Although the number of second-class rear admirals is huge, apart from the rear admiral Yamen, who can only deal with official documents, there are only a handful of senior rear admirals with practical naval qualifications, and because most of the officers with the rank of rear admiral are called around, many of them have been serving in overseas colonies for many years, and many of them are in poor health and can no longer wade into the storms and carry out overseas missions. Under these circumstances, many combat tasks could only be performed by officers of the rank of colonel, so the Admiralty was very understanding in agreeing to the emperor's exceptional promotion.

The lone commander, who did not please the French Admiralty, led a fast detachment but a powerful fleet. When the Admiralty issued an order to open the way to Guba, it asked him to form a fleet that had an overwhelming advantage over the small Prussian navy, and the first warship to be selected by Guba was the new ironclad ship "Ocean", which had just been completed and put into service, and was also the flagship of the new fleet. Subsequently, Guba successively transferred warships from other detachments and detachments. The count included the sister ship of the same class as the "Ocean", the marengo, the ironclad ships "Herroing", "Savoya", "Coron", "Revenge", "Goroas" and "Sulfrant", and the cruisers "Aroud", "Embera Kapo", "Oponiat", "Ambuscade", "Embenaiber", "Refus" and "Bertoktis", a total of 15 warships.

After the order to assemble was issued, the warships of this detachment, starting with the flagship "Ocean", successively sailed from the port where they were originally berthed to the port of Brest to assemble. French warships with the tricolor flying flew from all over the country to the assembly area, and on the seas of Europe, the French navy gathered the most powerful maritime force since the days of Napoleon's First Empire. Moreover, in order to allow the two new "Ocean" class ironclad ships to participate in the war as scheduled, the French Admiralty ordered the transfer of elite personnel from each detachment to form the crew of the two ironclad ships; according to the plan, the Lone Pull detachment assembled in Brest, and then sailed to Cherbourg after assembly. In order to ensure that the lone detachment did not have to worry about any threat from the sea, the Admiralty also organized a support fleet of ironclads and cruisers.

By the end of August 9070, most of the ships of the Lone Detachment had reached the Cherbourg anchorage. At this time, the French Admiralty sent a battle plan drawn up according to the Emperor's instructions, and after studying it, Lone Ba fully agreed to take the attack, and the Admiralty approved it, but emphasized that Gu Ba could only win and not lose this time, and put all the responsibility on Gu Ba.

Intelligence from the Admiralty clearly indicated the location of the Prussian Navy's capital ships (Lin Yiqing judged that Lin Yizhe should have provided them to Napoleon III), and after research, Guba decided to divide his troops into three ways and launch an attack. The first detachment consisted of two ironclad ships, the "Heroing" and the "Savoya" and the cruiser "Arroyud", which was responsible for intercepting and attacking the Prussian naval capital ship "Friedrich Karl" in the port of Yad, and this detachment was to be supported by the ironclad "Amid", which arrived from Toulon; The second detachment, consisting of the "Cologne" and "Revenge" and the cruiser "Embera Kabo", was responsible for intercepting and attacking the Prussian ironclad "Arminius", which was on defensive duty at the mouth of the Elbe, and this detachment was to be supported by the old ironclad ship "Flanders" and the cruiser "Banshee"; Guba led two of his latest ironclads, the "Ocean" and "Marengo", and the ironclads "Goroas" and "Sulfrant", and five cruisers to attack the main force of the Prussian fleet in the port of Kiel.

After learning about the situation in the entire port, Guba immediately began to deploy his warship. The Prussian defenders of the port of Kiel did not expect the French navy to appear here, and could only watch the French line up at the mouth of the harbor.

After all the arrangements were made, in accordance with the French tradition of warfare, Guba sent an officer ashore on a sampan and delivered an ultimatum to the Prussian defenders, demanding that they surrender the fortress. The defenders ignored the letter and raised their alert, while urgently reporting the naval ships in the port of Kiel.

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