The Karpalak ambush (Macedonian: Заседа кај Карпалак, Albanian: Pritë në Karpalak), referred to by Macedonians as the Karpalak massacre (Macedonian: Масакр кај Карпалак), was an attack carried out by the National Liberation Army (NLA) against a convoy of the Army of the Republic of Macedonia (ARM) near the village of Grupčin on 8 August 2001 amidst an ethnic Albanian insurgency in the country, in the final stages of the Yugoslav Wars. It was speculated that the ambush was carried out in retaliation for a Macedonian Police raid in Skopje the day before in which five NLA insurgents were killed. Ten members of the ARM's Military Reserve Force, including two officers, were killed at Karpalak and two others were wounded. The ambush was the single deadliest incident of the conflict up until that