 Because of the fact the NLA used the Ceasefire to infiltrate Tetovo and come in close to the security forces' positions, General Pande Petrovski issued an order allowing the security forces to open fire if the insurgents came within 200 meters of their positions.On 21 July, Macedonian army radar detected a NATO Chinook helicopter entering Macedonian air space from Kosovo and dropping a container on the village of Shipkovica (which after 5 July had fallen into NLA hands).Fifteen minutes after the first drop-off, another NATO helicopter dropped another container in the area of the village of Brodec.