A thread about the Turks did not take the lands of armenians by force:

The territory in which the armenians lived together for a time never was ruled by them as an independent, sovereign state. They couldn't maintain any independent or unified armenian state in the past.

•From 521 to 344 B.C. it was a province of Persia.
•From 334 to 215 B.C. it was part of the Macedonian Empire.
•From 215 to 190 B.C. it was controlled by the Selephkites.
•From 190 until 220 A.D. it frequently changed hands between the Roman Empire and the Parthians.

•From 220 until the start of the fifth century it was a Sassanian province, and from then until the seventh century, it belonged to Byzantium.
•From the seventh to the tenth centuries it was controlled by the Arabs. It returned again to Byzantine rule in the tenth century

•Finally, it came under the domination of the Turks starting in the eleventh century.

armenian historian Kevork Asian: "The Armenians lived as local notables. They had no feeling of national unity. There were no political bonds or ties among them. Their only attachments were to the neighboring notables. Thus
whatever national feelings they had were local. "

Roman historian Tacitus wrote:
"The Armenians change their position relating to Rome and the Persian Empire, sometimes
supporting one and sometimes the other", concluding that they are "a strange people."

armenians' lack of unity and their failure to create a real state, their weakness in relation to their neighbors, the territory in which they lived was the scene of constant conflict that they often were deported, or moved voluntarily, from the lands where they first lived.

when they fled from the Persians they settled in the area of Kayseri, in Central Anatolia. They were deported by the Sassanians into central Iran, by the Arabs into Syria and the Arabian Peninsula, by the Byzantines into Central Anatolia and to Istanbul, Thrace, Macedonia, etc

During the Crusades, they went to Cyprus, Crete, and Italy. In-flight from the Mongols they settled in Kazan and Astrakhan in Central Asia, and, finally, they were subsequently deported by the Russians from the Crimea and the Caucasus into the interior of Russia.

As a result of these centuries-long deportations and migrations, then, the Armenians were scattered from Sicily to India and from the Crimea to Arabia. They were forming what they call "the Armenian diaspora" centuries before they were deported by the Ottomans in 1915.

The Armenians after they accepted Christianity, and the long centuries of Armenian-Byzantine clashes until the Turks settled in Anatolia. Byzantines were working to wipe out the armenians and eliminate the Armenian principalities in order to maintain Greek Orthodoxy.

when the Seljuk Turks started flooding into Anatolia, they did not encounter any Armenian principalities; the only force remaining to resist them was that of Byzantium. The Seljuk ruler Alparslan conquered the lands of the armenian Principality of Ani in 1064.

it had previously been brought to an end by the Byzantine in 104, with Greeks being brought in to replace the armenians who had been deported. It is therefore false to claim that the Seljuk Turks destroyed any armenian principality. This already had been done by the Byzantines

The armenian historian Asoghik reports that "Because of the armenians' hatred toward Byzantium, they welcomed the Turkish entry into Anatolia and even helped them."

when eastern Anatolia was conquered by Fatih Mehmet II and Yavuz Sultan Selim I, it was taken from the White Sheep Turkomans and from the Safavids of Iran, who had occupied it after the Byzantines had retired; while Yavuz Selim took Cilicia from the Mamluks.

In no case, therefore, did the Ottoman Turks conquer or occupy an existing Armenian state or principality. In every case, these Armenians had previously been conquered by peoples other than the Turks.

source: http://www.mfa.gov.tr/data/DISPOLITIKA/ErmeniIddialari/Ermeni_ingilizce_Soru_CevapKitapcigi.pdf