Faatumu le fuaiupu lenei: O le 5th Army e tatau ona faʻatulagaina ma faʻatautaia i luga o se faʻavae faʻafanua mai le taimi o le filemu 5th Army District, lea na vaevaeina i ni vaega se tolu, o vaega taʻitasi na vaevaeina i vaega faʻapitoa. Na amata le uluaʻi faatasiga a le atunuu atoa i Yugoslavia i le masina o Setema i le 1939, ina ua osofaʻia e Siamani Polani. I le va o le lua ma le fa regiments o fitafita na faatupulaia i itumalo taitasi, regiments solofanua uma, o le tele o vaega o fanafana ma iunite leoleo tuaoi na faatupulaia foi. E leʻi taulau lenei gaoioiga ona e leʻi iai ni meafaigaluega a le ʻautau a Yugoslav, aemaise lava ni taavale e feoaʻi ai ma manu. Na faamaonia foʻi le lē aogā o le auala na faaaogā e faaauupegaina ai, ma na faataapeapeina ai iunite uma ina ua mavae ni nai masina. Na sosoo ai ma le toe faaauupegaina o le 5th Army District i le aso 12 Novema 1940, i le lua vaiaso talu ona
Na osofaʻia e Italia Eleni. I le 5th Army District, o le 5th Infantry Division "Šumadijska" ma le 46th Infantry Division "Moravska" na tatau ona faʻaosoosoina atoa aʻo le 22nd Infantry Division "Ibarska", le 9th Infantry Division "Timočka", le 8th Infantry Division "Krajinska", ma le 34th Infantry Division "Toplička" na tatau ona faʻaosoosoina vaega. Na iloiloina e le Ofisa Sili o le Itumalo o le 5th Army, o iunite ua faaauupegaina e faapea "e mafai ona faaaogā" ae o iunite e leai ni taavale mo femalagaiga ma ni manu.