hardened site การใช้

Originally Soviet strategic missile systems had been placed in fixed, hardened sites.
Few senators have sealed themselves in hardened sites.
Heavy artillery units in North Korea, many of which are buried in hardened sites with quick-opening armored doors, do not have to move to hit their targets.
In South Korea, the 58th Tactical Missile Group became combat ready with 60 TM-61s in January 1959 . It ceased operations in March 1962, only a few months after the 498th Tactical Missile Group in December 1961 took up positions in semi-hardened sites on Okinawa.
Israel lacks the airstrike assets to eliminate Iran's nuclear program, since the program is likely widely dispersed, hidden in the basements of hospitals, schools and orphanages, and in hardened sites under mountains . " Bunker busters " were notably unsuccessful in getting rid of Saddam when the US used them in Iraq.