Question: The first Battle of Reading took place following an invasion of Wessex by the Danes, led by which Viking leader?
Sentence (from "First Transjordan attack on Amman"): The Fourth Army headquarters located in Amman was strongly garrisoned and during the battle received reinforcements on the Hejaz railway, the strength of which eventually forced the attacking force to retire back to the Jordan Valley between 31 March and 2 April.
Relevant evidence: No