Algeria's powerful military chief General Ahmed Gaid Salah passed away, Sunday, December 22, wrote the Algerian press agency APS, quoting the Presidency of the republic. Gaid suffered a heart attack at the Ain Naadja military hospital, where he was admitted, the same source said. ? #Breaking_news: Lieutenant General Ahmed Gaid Salah passes away. ↪️ https://t.co/R4KVjvXEvZ pic.twitter.com/Bd7WeTt8EL — APS | وأج ?? (@APS_DZ) 23 décembre 2019 Gaid Salah debuted his military career with the Maquis, rural guerrilla bands of French Resistance fighters, in 1957, during the Revolutionary War, reports TV5 Monde. His training took him to the Soviet Union, near Moscow, where he studied at the Vystrel Artillery Academy. The Algerian President Abdelmadjid Tebboune declared, Monday, a three-day national mourning following the death of Ahmed Gaid Salah, concluded APS.