The so-called Slevan reaction was the first armed conflict, in which the Narentian army participated.It took place in the would-be Poplavinska Republic. It consisted of three battles, two offensives, three operations and one four-day siege. It was led by A.V. Posavinović and Z.Tvrtković.
The Slevan strategy counted with mobilization of the Slevan army, paramilitary units, other former micronationalists, who lost Slevan citizenship due to rebellions, most notably S. Pavelić, J. Hučar, L. Ivanović and also the former Izbiak rebels, and others active in the Prizrenija Republic, and also mobilizing Slovaks.They also wanted to steal the Narentian constitution and delete the Narentian webpage. However, their strategy was revealed.
|28th September 2012||Battle/offensive||Lasavski Brod||Plavobranci||Defeat|
|30th September 2012||Battle||Western Novigrad||NV, Hajduk||Victory|
|1st October 2012||Offensive||Izornia||NV, Plavobranci|
|Operation||Lesovina (Operation šuma)||Hajduk|
|3rd October 2012||Operation||
Lasavski Brod, Maloluka
|6th October 2012||Operation||Operation Lipa - Lipa i Snovina||NV, Plavobranci|
|Siege||Siege of Novomostje||NV, Hajduk, Plavobranci||Victory, end of Slevan Reaction|
|7th October 2012|
|8th October 2012|
|9th October 2012|
Another attempt followed, at took place during the 12-15th October 2012. It was led by A.V. Posavinović and S.Pavelić
|12th October 2012||Skirmish||Prievidza,Slovakia||Hajduk||Narentian victory|
|14th October 2012||Operation Bora||Iztarska||NV,Plavobranci|
|15th October 2012||Operation SSSS||Eastern Novigrad||Plavobranci,Hajduk|
After the failure of Operation SSSS, a ceasefire was negotiated. This led to the end of the Slevan reaction. A.V. Posavinović has resigned and stopped being hostile towards Narentia for a time.