Ka cika wannan jumlar: Frederick William ya kasance sanannen kwamandan soja, kuma sojojinsa na dindindin daga baya za su zama abin koyi ga Sojojin Prussia. Ya shahara saboda nasarar da ya yi tare da sojojin Sweden a yakin Warsaw, wanda, a cewar Hajo Holborn, ya nuna "farkon tarihin soja na Prussian", amma 'yan Sweden sun juya masa baya bisa umarnin Sarki Louis XIV kuma sun mamaye Brandenburg. Bayan ya yi tafiyar kilomita 250 a cikin kwanaki 15 ya koma Brandenburg, ya kama 'yan Sweden da mamaki kuma ya yi nasarar kayar da su a filin wasa a
Yaƙin Fehrbellin, yana lalata tatsuniyar rashin nasarar sojojin Sweden. Daga baya ya hallaka wata rundunar Sweden da ta mamaye Duchy na Prussia a lokacin Babban Sleigh Drive a 1678. An san shi da yin amfani da umarni mai zurfi da kuma ba da izinin yanke shawara ga kwamandojinsa, wanda daga baya zai zama tushen koyarwar Jamusanci na "Auftragstaktik", da kuma yin amfani da saurin motsi don kayar da abokan gabansa.