Rubuta ci gaba don wannan sakin layi - A farkon 1881, "Bismarck" ya shiga "Kaiserliche Werft" (Gidan Jirgin Ruwa na Imperial) a Wilhelmshaven don yin gyare-gyare mai yawa na tsarin motsawa. A lokacin wannan gyare-gyare ne aka shigar da bututun torpedo na baka; ta kuma maye gurbin bindigoginta na asali na 15 cm tare da bindigogi masu saurin saurin zamani na wannan caliber. Ta shiga wani zagaye na gwajin teku daga 2 zuwa 13 ga Agusta 1883, kodayake tun daga watan Yunin 1882 an sanya ta a matsayin wani ɓangare na I. Rashin tsaro saboda tashin hankali da ya shafi Yaƙin Anglo-Masar.
Ka yi haƙuri. A tsakiyar shekarun 1880, kasashen Turai sun shiga cikin rikici don Afirka, kuma kamfanonin Jamus, ciki har da Jantzen &amp; Thormählen da Woermann-Linie, sun fara matsawa gwamnatin Jamus don samun mallaka. Don wannan dalili, kamfanonin sun yi kokarin tayar da hare-hare daga masu mulki na gida a Afirka ta Yamma a kan 'yan kasuwa na Jamus a yankin don kokarin tilasta gwamnati ta sanya yankin a karkashin ikon Jamus. Sakamakon wadannan abubuwan da suka faru, Bismarck, duk da tsananin ƙyamar da yake yi na ƙasashen waje, ya yanke shawarar aika da rundunar soji zuwa Bay of Biafra don kare bukatun Jamus.