Editing Fort Mills (section)

===The Malinta Tunnel===
{{Main|Malinta Tunnel}}
The main part of the [[Malinta Tunnel]] complex was built on Corregidor from 1932 to 1934, with construction continuing until the Philippines were invaded in December 1941. Most US forts of this era had only small underground facilities, and this tunnel complex was the largest in the US [[Seacoast defense in the United States|coastal defense]] system. Due to the [[Washington Naval Treaty]]'s prohibition on new fortifications, most of the complex was built without appropriated funds, using Filipino [[convict labor]] for unskilled tasks, and explosives slated for disposal. During the siege, the Malinta Tunnel proved important to the survival of the Philippine government, the military high command, the medical staff, and numerous civilians.<ref>[http://corregidor.org/chs_lean_years/leanyear_02.htm Strong, Paschal N., ''The Lean Years'', p. 2 at Corregidor.org]</ref>