Control tower at Savannakhet (L-39), 1972

Control tower detail. Note the low-tech communication (a green "GO" sign hung out the window) and the cows in the foreground.

Col. Concy, the Wing Commander, finally solved the problem of cows on the runway by putting out word that any cattle found on the runway would be shot. Nobody wanted to lose any cows, so they kept them off the runway.