First Battle of the Isonzo

First Battle of the Isonzo
Part of the Italian Front
(World War I)

Eleven Battles of the Isonzo
June 1915 — September 1917
Date23 June — 7 July 1915
LocationSoča river, north-west Slovenia from the mountain Krn to the Gulf of Trieste
Result Austro-Hungarian tactical victory
Belligerents
Italy Italy  Austria-Hungary
Commanders and leaders
Luigi Cadorna,
Emanuele Filiberto
General Frugoni
General Svetozar Boroević
Major General Géza Lukachich von Somorja
Major GeneralNovak von Arienti
Strength
225,000 (18 divisions, 252 battalions, 111 cavalry squadrons, 700 guns) 115,000 (8 divisions, 84 battalions, 13 cavalry squadrons, 356 guns)
Casualties and losses
14,947 9,950

The First Battle of the Isonzo was fought between the Armies of Italy and Austria-Hungary on the Italian Front in World War I, between 23 June and 7 July 1915.

The aim of the Italian Army was to drive the Austrians away from its defensive positions along the Soča (Isonzo) and on the nearby mountains.

Although the Italians enjoyed a 2:1 numeric superiority, their offensive failed because the Italian commander, Luigi Cadorna, employed frontal assaults after impressive (but short) artillery barrages. The Austrians had the advantage of fighting from uphill positions barricaded with barbed wire which were able to easily resist the Italian assault.

The heaviest fighting occurred around Gorizia where Italian troops were able to advance as far as the suburbs, only to be later repelled.

Early in July the Austrian commander, Svetozar Boroević, received two reinforcement divisions, which put an end to the Italian efforts at breaking through the Austrian lines.

The final Italian gains were minimal: in the northern sector, they conquered the heights over Bovec (Mount Kanin); in the southern sector, they conquered the westernmost ridges of the Kras plateau near Fogliano Redipuglia and Monfalcone.

Involved units

Austria-Hungary
5th Army
VII Corps XVI Corps XV Corps
1st Infantry Division 57th Infantry Division61st Infantry Division20th Infantry Division58th Infantry Division
17th Infantry Division18th Infantry Division50th Infantry Division
187th Infantry Brigade6th Mountain Brigade16th Mountain Brigade14th Mountain Brigade81st Honvéd Infantry Brigade
39th Honvéd Infantry Brigade2nd Mountain Brigade12th Mountain Brigade5th Mountain Brigade4th Mountain Brigade
10th Mountain Brigade1st Mountain Brigade13th Mountain Brigade7th Mountain Brigade15th Mountain Brigade
8th Mountain Brigade3rd Mountain Brigade
Reserve
93rd Infantry Division
Headquarters
VII Corps in KostanjevicaXVI Corps in DornbergXV Corps in Kneža
Italy
2nd Army3rd Army
VII CorpsX CorpsXI CorpsVI CorpsII Corps
IV Corps
13th Infantry Division14th Infantry Division20th Infantry Division19th Infantry Division21st Infantry Division
12th Infantry Division11th Infantry Division4th Infantry Division3rd Infantry Division32nd Infantry Division
7th Infantry Division8th Infantry DivisionBersaglieri DivisionAlpini Group A and Bhalf 29th Infantry Division
Reserve
XIV Corps
half 29th Infantry Division22nd Infantry Division28th Infantry Division30th Infantry Division23rd Infantry Division
27th Infantry Division33rd Infantry Division1st Cavalry Division2nd Cavalry Division3rd Cavalry Division
Headquarters
2nd Army in Udine3rd Army in Cervigano

See also

Solkan (left) and the Soča (Isonzo)
Austro-Hungarian trench at the Soča (Isonzo)

References

Further reading

External links

Coordinates: 45°56′33″N 13°36′09″E / 45.94250°N 13.60250°E