The Indonesian Army has formed a large number of infantry battalions since it was formed from provisional militias during the Indonesian National Revolution against the Dutch colonial rule, 1945–1949. Today, the International Institute for Strategic Studies' Military Balance 2007 lists the Army with 2 brigades (6 battalions) plus 60 other battalions in the KODAMs, or Military Regional Commands, and nine battalions in KOSTRAD, the Army Strategic Reserve Command. There are also around nine airborne battalions. Indonesian military units are commonly referred to by compound words. Infantry battalions are routinely called as Yonifs which is a portmanteau from "batalyon infanteri" ('infantry battalion'). They are also commonly referred to by their battalion nicknames, for example: 511th Infantry Battalion - "Dibyatama Yudha". (en)
Batalyon Infanteri atau Yonif merupakan satuan dasar tempur pasukan Infanteri Tentara Nasional Indonesia (TNI) di bawah brigif atau korem. Batalyon Infanteri dapat merupakan bagian taktis dari suatu brigade dan dapat juga berdiri sendiri dengan tugas taktis dan administrasi. Batalyon umumnya terdiri dari unsur: * Sebuah Markas Batalyon, * Kompi Markas (umumnya terdiri dari Peleton Angkutan, Kesehatan, Komunikasi atau Perhubungan, Perbekalan dan lainnya), * Kompi Senapan (biasanya 3-5 Kompi, disesuaikan dengan luas wilayah tugas), dan * Kompi Bantuan (mengoperasikan senapan mesin berat, Mortir, STTB, Senjata Anti Tank dsb). Motto Batalyon Infanteri di Indonesia adalah Yudha Wastu Pramuka, di mana Yudhawara: berarti pelaksanaan atau alat perang, sedangkan Pramuka: secara harfiah berarti paling depan atau secara wujud berarti termuka, jadi Yudha Wastu Pramuka berarti pelaksana/alat perang yang terdepan atau alat perang yang utama. (in)