Too involved with remodeling to post anything
The meaning of "secure a building" in different branches of the military:
If you told Navy personnel to "secure a building," they would turn off the lights and lock the doors.
Army personnel would occupy the building so no one could enter.
Marines would assault the building, capture it, and defend it with suppressive fire and close combat.
Air Force personnel would take out a three-year lease with an option to buy.
Remodeling effort at http://gtoadventure.blogspot.com/