During the Second World War, the United States and the Soviet Union forged an alliance against Germany. Hence, it was a surprise when American pilots started to launch an assault on Red Army ground troops near the Serbian city of Niš in late 1944.
The motives behind the attack remain unclear, as both sides have opted not to disclose details. Nonetheless, one indisputable fact remains: the Niš Incident was a clear example of the tragic phenomenon of friendly fire.
A big mistake by the American forces
On November 7, 1944, the Soviet 6th Guards Rifle Corps moved towards Belgrade, Serbia, with the intention of bolstering the Hungarian front in the southern region against potential assaults.
Simultaneously, the US 82nd Operations Group (82 OG) provided aerial assistance to the Red Army. However, a huge error occurred on this day. The Americans appeared to be unaware that the Soviets had advanced 100 km beyond their anticipated position. Despite assurances from the US Mediterranean Air Force command that German forces were not close to Niš, the 82nd proceeded with an attack.
It seems they mistakenly identified the advancing Soviet troops as German forces.
Friendly fire dogfight
A group of Lockheed P-38 Lightnings open-fired on the Soviet convoy. It’s unclear how many American aircraft were involved in the attack, but the Red Army quickly retaliated, believing them to be Luftwaffe-flown Focke-Wulf Fw-189 Uhus.
Orders were given to Soviet pilots, based out of the nearby Niš Constantine the Great Airport, to aid in the engagement. Multiple Yakovlev Yak-9 and Yak-3s flew to the area, immediately engaging with the P-38s in an action-filled dogfight. It took some time, but the Red Army aviators eventually identified the white stars on the American fighters and laid off their weapons.
The Incident only lasted for 15 minutes
From the ground, the Soviets attempted to flag the Americans, to show they were firing at their allies. For whatever reason, they didn’t take notice of this information. It wasn’t until they showed the massive Red Star on their fighters that the American pilots realized they were engaging an ally and quickly withdrew.
What became known as the Niš Incident only lasted about 15 minutes. This may seem short, but it was enough for both sides to have aircraft shot down.
The reason it happened is still unclear
The exact reason for why the Niš Incident occurred is still unclear. The explanation given is that the Americans mistook the Red Army troops for Germans, but details have been handled as top secret.
Many speculate there may have been some other underlying reason for the attack. At the time, tensions were high between the US and the Soviet Union, and some believe the bad blood between the two was aired out that day. Whether this is true or not won’t be clarified until information becomes unclassified.
Each side has a different account of the event
Each side maintains their own account of what happened. The number of casualties for each varies, with the Soviets suffering between 31-34 casualties, around 37-39 wounded and 20 cargo trucks burned. The US contends that four Soviet aircraft and two P-38 Lightnings were lost that day, while the USSR claimed the total was actually two Yaks and five P-38s.
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Ultimately, the US military apologized for the mistake.
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