/historic anon reply's/
It looks like an old earth language.
If i remember correctly it's called Latin, as for what it means I believe it was a battle cry for a united army of sorts to fight against the Muslim menace that was attempting to conquer the planet through trickery,bloodshed,slavery,and other terrible tactics in a failed attempt to try and control all of earth. After these atrocities the Muslim conquerors where pushed back and the earth remained free for the most part until many years later when another chunk of the Muslim population on the planet again attempted to slaughter they're way to control the earth. The main battle cry of these monsters was Allahu ackbar as being shouted by the people in this video. Thankfully those monsters never did take over the planet seeing as up until its destruction earth was a free and peaceful planet. The fact that these battle cries of the past are resurfacing is quite troubling, especially considering the thousands if not millions killed in earth, to think of how many will die because of that disgusting phrase nowadays is troubling to say the least.