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
Date	23 June – 7 July 1915
Location	Isonzo river, north-west Slovenia from the mountain Krn to the Gulf of Trieste
Result	Inconclusive
Belligerents
Italy	Austria-Hungary
Commanders and leaders
Luigi Cadorna (Chief of Staff of the Italian Army) ; Pietro Frugoni (Commander of Second Army) ; Emanuele Filiberto di Savoia (Commander of Third Army)	Franz Conrad von Hötzendorf (Chief of the General Staff) ; Archduke Eugen of Austria-Teschen (Commander of Southwest Front) ; Svetozar Boroević von Bojna (Commander of Fifth Army); Géza Lukachich von Somorja (Commander of 5th Mountain Brigade) ; Guido Novak von Arienti (Commander of 1st Mountain Brigade)
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
15,000	10,000

Last updated January 23, 2025

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

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 Austro-Hungarians had the advantage of fighting from uphill positions barricaded with barbed wire which were able to easily resist the Italian assault.^{[ citation needed ]}

The Italians had some early successes. They partially took Krn (Monte Nero), took Kolovrat Plateau, and captured highlands around Bovec. However, they were unable to dislodge the Austro-Hungarian troops from the high ground between Tolmin and Soča River. The heaviest fighting occurred around Gorizia (Gorica). In addition to the natural defenses of the river and mountains, bastions were created at Oslavia (Oslavje) and Podgora. The fighting at Gorizia consisted of street-by-street urban combat interspersed with artillery fire. Italian troops, such as the Italian Re and Casale Brigades, were able to advance as far as the suburbs but could get no further and were driven back. They made small footholds at Sagrado and Redipuglia on the Karst Plateau southeast of Gorizia but were unable to do much else.

On the Austrian-Hungarian side two commanders distinguished themselves: Major General Géza Lukachich von Somorja, commander of the 5th Mountain Brigade, who retook Redipuglia, and Major General Novak von Arienti who retook Hill 383 (overlooking Plave) with his 1st Mountain Brigade.

Early in July the commander of the Austro-Hungarian Fifth Army, General Svetozar Boroević, received two reinforcement divisions, which put an end to the Italian efforts at breaking through the Austro-Hungarian 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 Karst Plateau near Fogliano Redipuglia and Monfalcone. The Battle was soon followed by the Second Battle of the Isonzo.

Involved units

Austria-Hungary
5th Army
VII Corps	XVI Corps	XV Corps
1st Infantry Division	57th Infantry Division	61st Infantry Division	20th Infantry Division	58th Infantry Division
17th Infantry Division	18th Infantry Division	50th Infantry Division
187th Infantry Brigade	6th Mountain Brigade	16th Mountain Brigade	14th Mountain Brigade	81st Honvéd Infantry Brigade
39th Honvéd Infantry Brigade	2nd Mountain Brigade	12th Mountain Brigade	5th Mountain Brigade	4th Mountain Brigade
10th Mountain Brigade	1st Mountain Brigade	13th Mountain Brigade	7th Mountain Brigade	15th Mountain Brigade
8th Mountain Brigade	3rd Mountain Brigade
Reserve
93rd Infantry Division
Headquarters
VII Corps in Kostanjevica	XVI Corps in Dornberg	XV Corps in Kneža

Italy
2nd Army	3rd Army
VII Corps	X Corps	XI Corps	VI Corps	II Corps
IV Corps
13th Infantry Division	14th Infantry Division	20th Infantry Division	19th Infantry Division	21st Infantry Division
12th Infantry Division	11th Infantry Division	4th Infantry Division	3rd Infantry Division	32nd Infantry Division
7th Infantry Division	8th Infantry Division	Bersaglieri Division	Alpini Group A and B	half 29th Infantry Division
Reserve
XIV Corps
half 29th Infantry Division	22nd Infantry Division	28th Infantry Division	30th Infantry Division	23rd Infantry Division
27th Infantry Division	33rd Infantry Division	1st Cavalry Division	2nd Cavalry Division	3rd Cavalry Division
Commanders
Pietro Frugoni	Emanuele Filiberto
Headquarters
2nd Army in Udine	3rd Army in Cervignano

Related Research Articles

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The Second Battle of the Isonzo was fought between the armies of the Kingdom of Italy and those of Austria-Hungary in the Italian Front in World War I, between 18 July and 3 August 1915.

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The Oslavia War Memorial is an Italian monument to soldiers who fell in battle during the battles of the Isonzo, particularly those who died during the taking of Gorizia in 1916. It stands on a 150m hill in the village of Oslavia, on the outskirts of Gorizia. The hilltop was on the front line as Austro-Hungarian troops defended the salient around Gorizia during the first, third and fourth battles of the Isonzo.

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The Battle of Hill 383 was a military engagement between the armies of Austria-Hungary and Italy on the Italian front of World War I, lasting from June 1915 to May 1917. The battle took place on a hill later called Mount Prižnica, located across the river Soča from the town of Plave in Austria-Hungary. The Italian and Austro-Hungarian armies clashed for two years in an attempt to occupy it; the bloodiest clash occurred on 17 June 1915 when General Luigi Cadorna wanted to offer king Victor Emmanuel III a conquest which he could witness in person. This "demonstration" caused the death of over 8,000 men who were massacred in a frontal attack against Austrian machine guns. The fighting was continuing for the next two years, until Mount Prižnica was taken by Italians during the Tenth Battle of the Isonzo.

The 33rd Infantry Regiment "Livorno" is an inactive unit of the Italian Army last based in Fogliano Redipuglia. The regiment is named for the city of Livorno and part of the Italian Army's infantry arm. The regiment was one of five line infantry regiments formed by the Provisional Government of Tuscany on 5 May 1859 during the Second Italian War of Independence. In 1860, the regiment joined the Royal Sardinian Army. In 1866, the 33rd Infantry Regiment participated in the Third Italian War of Independence. In World War I the regiment fought on the Italian front.

References

1 2 "Le dodici Battaglie dell'Isonzo".

Österreichisches Staatsarchiv/Kriegsarchiv Wien
L'esercito italiano nella grande guerra (1915–1918) Volume I–IV / Roma: Ministerio della Guerra – Ufficio Storico, 1929–1974
Ministero della Guerra Stato Maggiore centrale – Ufficio Storico. Guerra Italo-Austriaca 1915–18. Le medaglie d'Oro. Volume secondo – 1916. Roma: 1923
Österreich-Ungarns letzter Krieg 1914–1918 Band II Verlag der Militärwissenschftlichen Mitteilungen Wien 1931–1933
Anton Graf Bossi-Fedrigotti: Kaiserjäger – Ruhm und Ende. Stocker Verlag, Graz 1977
http://www.worldwar1.com/itafront/ison1915.htm

External links

First Battle of the Isonzo, 1915 at FirstWorldWar.com
Battlefield Maps: Italian Front
11 battles at the Isonzo
The Walks of Peace in the Soča Region Foundation. The Foundation preserves, restores and presents the historical and cultural heritage of the First World War in the area of the Isonzo Front for the study, tourist and educational purposes.
The Kobarid Museum (in English)
Društvo Soška Fronta (in Slovenian)
Pro Hereditate – extensive site (in En/It/Sl)

45°56′33″N13°36′09″E / 45.94250°N 13.60250°E / 45.94250; 13.60250

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[storia_contemporanea-1] 1 2 "Le dodici Battaglie dell'Isonzo".

[1]

First Battle of the Isonzo

Contents

Involved units

See also

Related Research Articles

References

Further reading

External links