Second Army (Bulgaria)

The Bulgarian Second Army was a Bulgarian field army during the Balkan Wars, World War I, and World War II.

History

After 1907, during times of peace, the territory of Bulgaria was divided in three army inspectorates, each one comprising three divisional district. During war they formed three independent field armies. The Second Army Inspectorate, which had its seat in Plovdiv, formed the headquarters of the Second Army.

Balkan Wars

First Balkan War

On 17 September Bulgaria declared the mobilization of its armed forces and the three field armies were activated. Lieutenant General Nikola Ivanov took command of the Second Army and colonel Nikola Zhekov was made chief of staff.
The Second Army was tasked with covering the concentration of the remaining forces. Its own mobilization and deployment were carried out according to schedule and on 30 September almost all units had reached their designated areas along the Ottoman border. The Army established its headquarters at Simeonovgrad. Then on 5 October 1912 O.S. Bulgaria declared war on the Ottoman Empire. The Second Army had the following order of battle:

	Battalions	Squadrons	Artillery Batteries	Men	Rifles	Machine guns	Cannons
Army Staff and Services				1,327	249
8th "Tundzha" Infantry Division	25	2	15	35,473	26,908	24	72
9th "Pleven" Infantry Division	25		15	34,690	24,019	24	72
Haskovo Detachment	8	1	9	11,867	8,302	8	42
Mixed Cavalry Brigade		6		1,551	1,031	4
2nd QF Howitzer Section			3				12
Total	58	9	42	83,357	60,059	60	198

The task of the army was to neutralize the strong garrison of the Adrianople fortress while the First and Third armies engaged the main forces of the Ottoman Eastern Army. After the advance had begun, in order to achieve its objective, the Second Army was temporarily reinforced with the 1st Brigade of the 3rd Balkan Infantry Division, which was attached to the 9th Division.
Initially, the army met little resistance and its main forces headed towards Adrianople. The Haskovo Detachment engaged the Ottoman forces of Yaver Pasha around Kurdzhali and after a decisive battle took the town on 8 October. This secured the right flank of the army and made any Ottoman attacks on its rear lines of communication impossible.
On 9 October, the Ottoman Army in Eastern Thrace commenced an offensive against the Bulgarian forces. The fortress garrison left the town and attacked to the west and the east against the Bulgarian Second and First armies. The Bulgarians were not surprised and managed to hold the attacks, forcing the Ottomans to return to the fortress. On 10 October, with the end of the attempted breakthrough the Bulgarian High Command ordered the 1/3 Brigade to be returned to the 3rd Balkan Infantry Division. The Haskovo Detachment was ordered to leave two battalions in Kardzhali and approach Adrianople from the west.
After the victory at the Battle of Kirk Kilisse the Bulgarian First and Third armies advanced to the south in pursuit of the Ottoman Eastern Army and cut the line of communication between Adrianople and Constantinople. The 3rd Balkan Division was ordered by the commander of the First Army to remain around Adrianople, to protect the army's rear and cooperate with the Second Army. With the fortress now almost completely isolated, its commander Shukru Pasha ordered a new attack on 16 October with 18 infantry battalions against the Bulgarian 3/8, 1/9 and 2/9 infantry brigades but it soon failed and the Turkish troops retired to their main defensive line. On the same day with their main forces engaged at the Lule Burgas the Bulgarians decided to complete the encirclement of the fortress. Two brigades of the 9th Division were sent to assist the Third Army while their place was taken by the newly formed 11th Mixed Infantry Division. By 26 October the fortress was completely cut off but the Bulgarian lines were overstretched and in held by very few troops on many places. The Bulgarian High Command used a previously reached agreement with Serbia, that allowed the deployment of Serbian forces in Eastern Thrace, to reinforce the Bulgarians with two divisions of the Serbian Second Army. By early November the last of the Serbian forces had arrived. With the attention of the Bulgarians focused on the Çatalca line a new attempt by the Ottomans to break the siege was repulsed on 29 and 30 October. Until the first armistice was concluded the Second Army limited its operations to tightening the encirclement and shelling the fortress in order to reduce the morale of its defenders.
During the first armistice, while the peace talks in London continued, the Bulgarians strengthened and fortified their positions around the fortress. As soon as it became evident that the Ottomans were not willing to satisfy the demands of the Balkan League, the Bulgarian High Command began preparing for a possible renewal of the military operations and drawing plans for the capture of the Adrianople Fortress.
In January 1913 the talks finally broke down and hostilities recommenced. On 26 January the Ottomans began a large offensive against Bulair and on the Çatalca line in order to break through the Bulgarian armies and relieve the forces in Adrianople. To use this development on the next day Shukru Pasha again ordered his forces to break out the besieged fortress but once again the attack failed. The Ottomans offensive as a whole had little success and failed to achieve its objectives. The Bulgarian High Command decided to storm the fortress in order to prevent any more large attempts for its rescue and to free the Bulgarian forces besieging it for operations elsewhere. By March the Second Army was reinforced and ready to attack. Its battle area was divided in sectors that had the following order of battle:

	Battalions	Squadrons	Artillery batteries	Men	Rifles	Machine guns	Cannons
Army Headquarters				2,356
Eastern Sector	50	9,5	53		41,927	50	226
Southern Sector	17		23		16,278	16	94
Western and Northwestern sector	4		8		3,116		38
Total	71	9,5	84	107,249	61,321	66	358

The Serbian Second Army was deployed in the Western and Northwestern sector.
The final assault began on 11 March with the forces in the Eastern Sector tasked with the main attack. After three days of heavy fighting the fortress fell and Sukru Pasha surrendered to generals Nikola Ivanov and Georgi Vazov. The Ottoman Empire was left with no choice, asked and received a second armistice on 3 April. This marked the end of the Bulgarian military operations in the war.

Second Balkan War

With the end of the First Balkan War, Bulgaria was forced to start transferring its forces immediately to Macedonia and the old border with Serbia. The Second Army was deployed in Aegean Macedonia against the entire Greek Army. Its composition had changed significantly and now included two half-strength divisions and three infantry brigades, two of which had been recently raised from young untrained and inexperienced men from the territories ceded by the Ottoman Empire. On 16 June, the army had the following order of battle:

	Battalions	Squadrons	Artillery Batteries	Men	Rifles	Cannons
Army Staff				713
3rd "Balkan" Infantry Division	16		12	22,615	19,059	69
11th "Mixed" Infantry Division	11		6	24,399	20,110	68
1/10 Infantry Brigade	8		3	10,430	8,100	12
Drama Brigade	8		4	8,336	6,820	8
Seres Brigade	8		4	8,583	6,945	18
Army units	6	10	8
Total	57	10	37	75,076	61,034	175

On 17 June, following the attack of the Bulgarian Fourth Army against the Serbians, the Second Army began advancing against the Greek forces. The 11th Division and the Serres Brigade drove off the Greek troops around Pravishte with ease, as the main Greek forces had retired to the right bank of the Struma a few days earlier. In the center of the line the 1/10 Brigade and the 2/3 Brigade also advanced and began fortifying their positions around Kukush and Negovan. Meanwhile, the 3/3 Brigade attacked the weak Serbian vanguards west of Lake Dojran and captured Gevgelija. The Army remained dispersed on a 96-kilometer-long front which severely hampered the coordination and cooperation between its forces, leaving general Ivanov with no reserves.
During the initial Bulgarian advance, the Greek Army had not finished its concentration but once the direction of the advance was clear and it became evident that the Bulgarian Fourth Army was seriously engaged in the struggle with the Serbians the Greek Headquarters decided to go on the offensive. For that purpose, the Greeks had 8 infantry divisions and a cavalry brigade, almost their entire army. On 19 June, they advanced with two divisions on a wide front against Kukush where the Bulgarian 2nd Infantry Brigade of the 3rd Division had fortified its positions. The fighting was heavy but the Bulgarians managed to hold the advance temporarily which convinced the Greek Headquarters to throw even more forces in the fight and outflank the Bulgarians. By 21 June the 2/3 Brigade could not cope with the crushing numerical superiority of its opponents and the arriving reinforcements from the Serres Brigade failed to avert the defeat. This forced the Bulgarians to retreat. The situation in the other sectors of the Second Army also deteriorated rapidly. Parts of the 3/3 Brigade were defeated at Kalinovo by the Greek 10th division and the 1/10 Brigade, supported by parts of the Drama Brigade, was defeated at Lachanas by the Greek 1st and 6th divisions. After the defeat at the Battle of Kilkis-Lahanas the Bulgarians retired to the north. On the right wing of the Second Army the 3/3 Infantry Brigade had dug in south of Dojran in an attempt to hold the Greek 10th Division. The Bulgarian Command order the 2/6 Infantry Brigade to reinforce the positions but the Greeks pressed two more divisions in the fight and once again compelled the Bulgarians to retreat on 23 June.
The Second Army was now given the task to protect the Dojran-Strumitsa road and the Rupel Gorge that were vital for the rear of the Bulgarian 4th Army. For that purpose the army was divided in two – the 3/3 and 2/6 infantry brigades under the commander of the 6th Bdin Division were to defend the first direction and the Serres, Drama, 2/3 and 1/10 brigades under the commander of the 3rd Division were to guard the Gorge. The 11th Infantry Division was left to guard the Aegean coast between the Struma and the Mesta. The Greek Army divided its forces accordingly one group consisting of the 2nd, 3rd, 4th, 5th, 10th divisions and the cavalry brigade operating against Strumitsa and another one consisting of the 1st, 6th and 7th divisions tasked with demonstrative actions in the Rupel Gorge. The numerical superiority of the Greeks and their artillery proved decisive and on 26 June they took Strumitsa outflanking the Bulgarians at Ruppel and forcing their retreat. The Second Army, however, prevented a disaster by managing to hold its positions long enough for the 4th Army to conduct its own retreat.
The Serbians and the Greeks now established direct contact with each other and planned a joint offensive, hoping to link up at Tsarevo Selo and destroy the Bulgarian 4th and 2nd armies. The Serbians were to attack at Kalimantsi while the main forces of the Greek Army – 1st, 2nd, 4th, 5th and 6th Division – was to advance against Gorna Dzhumaia with the remaining divisions covering their flanks.
The Bulgarian Second Army was in no condition to hold the Greek advance as it had suffered heavy casualties in the previous battles and a cholera outbreak further reduced its strength. In addition, the news of the Romanian and Ottoman mobilization reduced the morale of the soldiers. Under such conditions by 11 July the Greek forces had managed to advance up to the northern exit of the Kresna Gorge but the decisive victory they had planned was not achieved as the Serbians were defeated at the Battle of Kalimanci and the Greek forces themselves had overextended their supply lines. The Bulgarian Second Army managed to conduct a fighting retreat, reaching height 1378. On 15 July that positioned was abandoned and the forces retired north Gorna Dzhumaia where the front finally stabilized.
The Bulgarian High Command now planned to go on the offensive against the Greeks for the first time since the beginning of the war. The Bulgarian 4th and 5th armies had been placed under the overall command of general Mihail Savov and on 14 July the Second Army was also added to the army group. the defeat of the Serbians allowed the Bulgarians to concentrate large parts of the 4th Army, the entire 2nd Army and fresh units of the 1st Army against the Greek Army. General Savov could count on 110 battalions, 10 squadrons and 40 artillery batteries against the 84 battalions 12 squadrons and 37 artillery batteries of the Greeks. The plan was to pin down the Serbian armies in front of the Bulgarian 4th Army while the main Bulgarian forces attacked the flanks of the Greek Army in an effort to completely encircle it.
The operation began on 15 July with successful Bulgarian advances on both flanks and in the center. General Vasil Kutinchev, who replaced general Ivanov as commander of the 2nd Army on 16 July, used the situation to retake height 1378 in the center of the front and exerting pressure on the Greeks who were transferring part of their forces from the center in order to strengthen their flanks. The greatest threat for the Bulgarians however came from the Greek 2nd and 4th divisions which attacked between 15 and 17 July the right wing of the Second Army in an effort to utilize a gap that had opened between it and the 4th Army and eventually join hands with the Serbians at Tsarevo Selo. The Greek advance, however, was halted and the reorganized right wing of the Second Army continued its attacks against the left wing of the Greeks in the Kresna Gorge. The Serbians also tried to assist but their attacks were repulsed by the 7th Rila Division of the Bulgarian 4th Army.
King Constantine realized that his army was placed in a very difficult situation and his so far uncompromising attitude towards Bulgarian offers for a ceasefire gave way to a more yielding attitude. He admitted that his forces were reaching the limits of their morale physical endurance and asked his prime minister Eleftherios Venizelos to reach a ceasefire agreement as soon as possible.
By 17 July, the Bulgarians had achieved success with their right flank advancing with between 15 and 18 kilometers in three days and the Greeks heavily engaged in the center and on their right flank. The advance was to continue on 18 July but the Greek king managed to obtained the ceasefire he and the Bulgarian delegation in Bucharest desired before any further military actions were undertaken.
The army was demobilized on 29 July, one day after the signing of the Treaty of Bucharest.