Arab conquest of Armenia

The Arab conquest of Armenia was a part of the Muslim conquests after the death of Muhammad in 632 CE.

Persian Armenia had fallen to the Arab Rashidun Caliphate by 645 CE. Byzantine Armenia was already conquered in 638–639.

After Muhammad's death in 632, his successors started a military campaign in order to increase the territory of the new Caliphate. During the Muslim conquests, the Arabs conquered most of the Middle East.

Towards the year 639, under the leadership of Abd ar-Rahman ibn Rabiah, 18,000 Arabs penetrated the district of Taron and the region of the Lake of Van and put the country to fire and sword. The Arab warriors were poor and ill-armed, but reckless and inflamed with an intense fanaticism until then unknown among ancient peoples.

On January 6, 642 the Arabs stormed and took the city of Dvin, slaughtered 12,000 of its inhabitants and carried 35,000 into slavery. Prince Theodorus of the Rshtuni family confronted the Arabs, and came out victorious by liberating the enslaved Armenians.

Bishop Sebeos recorded the history of the Arab conquest. In his History of Heraclius, he wrote of the sad fate of his country. He said,

"Who can tell the horrors of the invasion of the Ishmaelite (Arab), who set both the land and the sea ablaze? [...] The blessed Daniel foresaw and foretold like misfortunes. [...] In the following year (643), the Ishmaelite army crossed to Atrpatakan (Azerbaijan) and was divided into three corps. One moved towards Ararat; another into the territory of Sephakan Gound, the third into the land of Alans. Those who invaded the domain of the Sephakan Gound spread over it, destroying, plundering and taking prisoners. Thence they marched together to Erevan, where they attacked the fortress, but were unable to capture it."

...
Wikipedia