The aftermath saw the 17th parallel established as a temporary boundary between the victorious nation and the occupier-backed losing side.
This battle was followed up by Operation Églantine, the losing side's last offensive in the war, which led to the Battle of Mang Yang Pass. The aftermath saw the 17th parallel established as a temporary boundary between the victorious nation and the occupier-backed losing side. The latter, which counted among its number Hmong mercenaries, had captured the namesake mountainous border (*) town, which was promptly cut off and surrounded by Vo Nguyen Giap. Indirectly leading to the fall of the Fourth Republic, For 10 points, name this major victory for the Viet Minh and disaster for the French that effectively ended the First Indochina War.
This battle was followed up by Operation Églantine, the losing side's last offensive in the war, which led to the Battle of Mang Yang Pass.
Battle of {Dien Bien Phu} (prompt on "First" or "{French Indochina War}" early)