On April 1, 1916, and again on April 12, 1916, the Turks reported that they had repulsed attacks of Russian scouting parties advancing along the upper Chorok, and even claimed an advance for their own troops. But on the next day, April 3, 1916, the Russians apparently were able to turn the tables on their opponents, claiming to have crossed the upper basin of the Chorok and to have seized strongly fortified Turkish positions located at a height of 10,000 feet above sea level, capturing thereby a company of Turks. Again on the following day, April 4, 1916, the Russians succeeded in dislodging Turkish forces from powerful mountain positions.
Concurrent with these engagements, fighting took place both in the south and north. On April 2, 1916, a Turkish camp was stormed by Russian battalions near Mush to the northwest of Bitlis. Still farther south, about twenty-five miles southeast of Bitlis, the small town of Khizan had fallen into the hands of the Russians, who drove its defenders toward the south. The Russian advance to the southwest of Mush and Bitlis continued slowly but definitely throughout the next few days, with the town of Diarbekr on the right bank of the upper Tigris as its objective.
Beginning with the end of March, 1916, the Turks also launched a series of strong counterattacks along the coastal front. The first of these was undertaken during the night of March 26, 1916, but apparently was unsuccessful. It was an answer to a strong attack on the part of the Russians during the preceding day which resulted in the dislodgment of Turkish troops holding strong positions in the region of the Baltatchi Darassi River and in the occupation by the Russians of the town of Off on the Black Sea, thirty miles to the east of Trebizond. This success was due chiefly to the superiority of the Russian naval forces, which made it possible to precede their infantry attack with heavy preparatory artillery fire. By March 27, 1916, the Russians had advanced to the Oghene Dere River, another of the numerous small rivers flowing into the Black Sea between Rizeh and Trebizond. There they had occupied the heights of the left (west) bank. During the night the Turks made a series of strong counterattacks, all of which, however, were repulsed with considerable losses to the attackers. Another Turkish counterattack in the neighborhood of Trebizond was launched on April 4, 1916. Although strongly supported by gunfire from the cruiser Breslau, it was repulsed by the combined efforts of the Russian land forces and destroyers lying before Trebizond. During the next few days the Turks offered the most determined resistance to the Russian advance against Trebizond, especially along the river Kara Dere. This resistance was not broken until April 15, 1916, when the Turks were driven out of their fortified positions on the left bank of that river by the combined action of the Russian land and naval forces. The Russian army was now, after almost a fortnight's desperate fighting, within sixteen miles of its goal, Trebizond. On April 16, 1916, it again advanced, occupying Surmench on the Black Sea, and reaching later that day, after a successful pursuit of the retreating Turkish army, the village of Asseue Kalessi, only twelve miles east of Trebizond.
With this defeat the fall of Trebizond apparently was sealed. Although reports came from various sources that the Turkish General Staff was making the most desperate efforts to save the city by dispatching new reenforcements from central Anatolia, the Russian advance could not be stopped seriously any longer. Every day brought reports of new Russian successes along the entire Armenian front. On April 17, 1916, they occupied Drona, only six and a half miles east of Trebizond. Then finally, on April 18, 1916, came the announcement that Trebizond itself had been taken.
Trebizond is less important as a fortified place than as a port and harbor and as a source of supply for the Turkish army. It is in no sense a fortress like Erzerum, though the defenses of the town, recently constructed, are not to be despised. As a vital artery of communications, however, its value is apparent from the fact, first, that it is the Turks' chief port in this region, and secondly, that railway facilities, which are so inadequate throughout Asia Minor, are nonexistent along the northern coast. Hence the Turks will have to rely for the transport of troops and supplies upon railways which at the nearest point are more than 300 miles from the front at Trebizond.
Trebizond is an ancient seaport of great commercial importance, due chiefly to the fact that it controls the point where the principal trade route from Persia and central Asia to Europe, over Armenia and by way of Bayezid and Erzerum, descends to the sea. It has been the dream of Russia for centuries to put her hands forever upon this important "window on the Black Sea."
Trebizond's population is about 40,000, of whom 22,000 are Moslems and 18,000 Christians. The city first figured in history during the Fourth Crusade, when Alexius Comnenus, with an army of Iberian mercenaries, entered it and established himself as sovereign. In 1461 Trebizond was taken by Mohammed II, after it had for two centuries been the capital of an empire, having defied all attacks, principally by virtue of its isolated position, between a barrier of rugged mountains of from 7,000 to 8,000 feet and the sea.
As far as capturing important ports of the Turkish left wing was concerned, the victory of Trebizond was an empty one. For the Turks evacuated the town apparently a day or two before the Russians occupied it. The latter, therefore, had only the capture of "some 6-inch guns" to report. This quick evacuation, at any rate, was fortunate for the town and its inhabitants, for it saved them from a bombardment and the town did not suffer at all as a result of the military operations.
The campaign resulting in the fall of Trebizond did really not begin until after the fall of Erzerum on February 16, 1916. Up to that time the Russian Caucasian army had apparently been satisfied to maintain strong defensive positions along the Turkish border. But since the occupation of Erzerum a definite plan of a well-developed offensive was followed looking toward the acquisition of Turkish territory which had long been coveted by Russia.
With the fall of Trebizond Russia became the possessor, at least temporarily, of a strip of territory approximately 125 miles wide along a front of almost 250 miles length, or of an area of 31,250 square miles. In the north this valuable acquisition was bounded by that part of the south shore of the Black Sea that stretches from Batum in Russian Transcaucasia to Trebizond. In the south it practically reached the Turko-Persian frontier, while in the west it almost reached the rough line formed by the upper Euphrates and the upper Tigris. It thus comprised the larger part of Armenia. As soon as the Russians had found out that the Turks had a start of almost two days, they began an energetic pursuit. The very first day of it, April 19, 1916, brought them into contact with Turkish rear guards and resulted in the capture of a considerable number of them. The retreat of the Turks took a southwesterly direction toward Baiburt along the Trebizond-Erzerum road and toward Erzingan, to which a road branches off the Trebizond-Erzerum road. Baiburt was held by the Turks with a force strong enough to make it impossible for the Russians to cut off the Trebizond garrison. Along the coast the Russians found only comparatively weak resistance, so that they were able to land fresh forces west of Trebizond and occupy the town of Peatana, about ten miles to the west on the Black Sea.