The American ordnance crew that had explored it estimated the mine contained 400,000 tons of explosives.
It could have closed off the school until another international organization with ordnance disposal skills secured the area.
He said that by end of his tour he felt like the Iraqi insurgency was more sophisticated but simply running out of ordnance.
"cannon, artillery," 1540s, a clipped form of ordinance (q.v.) which was attested from late 14c. in the sense of "military materials, provisions of war;" a sense now obsolete but which led to those of "engines for discharging missiles" (early 15c.) and "branch of the military concerned with stores and materials" (late 15c.). The shorter word was established in these distinct senses by 17c. Ordnance survey (1833), official survey of Great Britain and Ireland, was undertaken by the government under the direction of the Master-General of the Ordnance (a natural choice, because gunners have to be skilled at surveying ranges and distances).