BAGHDAD—To secure the recently liberated city of Fallujah, Iraq’s army is resorting to an old tactic: it is building a trench as part of new measures to safeguard the area. Already under construction, the ditch will separate northern Fallujah from an outlying district that served as the entry point for Islamic State’s original occupation of the...

Source: Wall Street Journal July 23, 2016 18:00 UTC