Fought 637, between the Moslems, under Said, and the Persians, under Yezdegerd. Yezdegerd fled from the field, and his troops discouraged, were totally routed with heavy loss.
Jamaica.
This island was captured from the Spaniards, May, 1655 by a combined English naval and military force, under Admiral Penn and General Venables.
Jarnac (Third Civil War).
Fought March 13, 1569, between the Catholics, under the Marshal de Tavannes, and the Huguenots, under the Prince de Condé. The brunt of the action was borne by the Huguenot cavalry, who were overpowered by the Catholics, and Condé slain.
Jassy (Ottoman Wars).
Fought September 20, 1620, between the Poles under Gratiani, and the Turks, under Osman II. The Poles were completely defeated.
Jellalabad (First Afghan War).
This fortress was besieged by the Afghans, under Mohammed Akbar Khan, March 11, 1842, after the destruction of General Elphinstone's force in the Khoord Cabul pass. It was defended by a small British garrison, under General Sale. Akbar led his whole army to the assault, but was gallantly repulsed, and then sat down to besiege the place in form. An attempt to relieve it by Brigadier Wyld, in January, 1843, failed, Wyld being defeated in the Khyber Pass by the Khyberis. The garrison meanwhile made several successful sorties, and on April 7, drove Akbar Khan out of his entrenchments, with a loss of all his guns, and many men, forcing him to raise the siege. All chance of a renewal of the investment was ended by the arrival on the 18th, of a strong relieving force, under General Pollock.