Kammala jumla mai zuwa: An kafa rundunar soja ta farko a Delaware lokacin da mazauna Sweden suka dauki makamai don kare Fort Christina (wanda a lokacin mazaunin Sweden ne) daga mamayewa na Dutch. A lokacin Yakin Juyin Juya Halin Amurka, Delaware ta tara wasu rukunin 'yan bindiga don tallafawa bangaren Patriot na yakin. A cikin Yakin 1812, duk rukunin masu sa kai na Delaware sun ga yaƙi a Lewes, inda suka ƙunshi yawancin ƙarfin da ya kori rundunar sojan ruwa na Burtaniya da ke neman iko da Kogin Delaware. Duk da cewa gwamnatin tarayya da farko ta haramta kungiyoyin sa kai a yakin Amurka da Mexico, kungiyar sa kai da aka kafa a Delaware za ta yi aiki a yakin Contreras,
Cherubusco, Molino del Rey, da Chapultepec, sun rasa mutane da yawa da aka yi wa rukunin lakabi da "Jini 11". A lokacin yakin basasa na Amurka, Delaware zai tara raka'a da yawa don tallafawa dalilin Union. A lokacin yakin Spain da Amurka, an tattara 1st Delaware Volunteer Infantry a cikin sabis na tarayya amma ba a tura shi ba. Tare da zartar da Dokar Militia na 1903, duk rukunin 'yan bindigar jihohi an ninka su cikin Tsaron Kasa na Amurka, galibi suna juya' yan bindigar jihohi daga ikon da jihar ke ba da kuɗi da sarrafawa zuwa ɓangaren ajiyar rundunar sojan tarayya.