 Complete the following phrase:  This small air force operated six Warriors with marks BF-8421 cn 049, BF-8424 cn 254, BF-8431 cn 116, BF-8451 cn 206, BF-8477 cn 134 and BF-8479 cn 136; these Warriors were sold from the Philippines via Belgium in 1986, and were complemented by other four new Warriors coming directly from Italy, and employed during the 