I've always heard that MPs are required to wear head protection any time they are in an official vehicle, though maybe someone who is military could confirm.

infowars should be taken with a huge grain of salt. If anything it sounds like they're just mobilizing units around and building crap. They have all those medical supplies in a just in case shit goes south situation, which i applaud them for. A little strange maybe, but you have to realize that the US puts up a ton of money for the UN and thus has a ton of equipment. Maybe these vehicles are heading out to be used somewhere? I couldn't tell how new they looked, so idk. Infowars also links to a known crackpot site dailymail so double that grain of salt.

though from what I heard, they are moving extra terrestrials around and that's why they need all that equipment and armored ambulances.