Passage: In August 1042, the emperor relieved General George Maniakes from his command in Italy, and Maniakes rebelled, declaring himself emperor in September.  He transferred his troops into the Balkans and was about to defeat Constantine's army in battle, when he was wounded and died on the field, ending the crisis in 1043.Immediately after the victory, Constantine was attacked by a fleet from Kievan Rus'; it is "incontrovertible that a Rus' detachment took part in the Maniakes rebellion". They too were defeated, with the help of Greek fire.  Constantine married his relative Anastasia to the future Prince Vsevolod I of Kiev, the son of his opponent Yaroslav I the Wise. Constantine's family name Monomachos ("one who fights alone") was inherited by Vsevolod and Anastasia's son, Vladimir II Monomakh.Constantine IX's preferential treatment of Maria Skleraina in the early part of his reign led to rumors that she was planning to murder Zoë and Theodora.  This led to a popular uprising by the citizens of Constantinople in 1044, which came dangerously close to actually harming Constantine who was participating in a religious procession along the streets of Constantinople. The mob was only quieted by the appearance at a balcony of Zoë and Theodora, who reassured the people that they were not in any danger of assassination.In 1045 Constantine annexed the Armenian kingdom of Ani, but this expansion merely exposed the empire to new enemies. In 1046 the Byzantines came into contact for the first time with the Seljuk Turks.  They met in battle in Armenia in 1048 and settled a truce the following year.  Even if the Seljuk rulers were willing to abide by the treaty, their unruly Turcoman allies showed much less restraint. The Byzantine forces would suffer a cataclysmic defeat at the battle of Manzikert in 1071. Constantine began persecuting the Armenian Church, trying to force it into union with the Orthodox Church. In 1046, he refounded the University of Constantinople by creating the Departments of Law and Philosophy.

Question: In what country did they battle in 1048?
Armenia