The battle for the defense of Vukovar was difficult, bloody and unequal, absolutely unfair, however honorable and defensive. All war events in the city were imposed on the defenders of Vukovar by the JNA and their supporters. The injustice was reflected in the huge disproportion of arms and armies. The balance of power between two armies points to absolute advantage of the JNA. In the period between July and December 1991, there were approximately 80.000 soldiers, 1.900 armored combat vehicles, 900 artillery support vehicles and 700 weapons for air defense on the territory of eastern Slavonija and western Srijem.The Vukovar forces were part of the part of the army that was in the process of its development, with miserably anti-inflammatory resources and lack of artillery. Croatia was unprepared and it was quickly placed under war conditions. The country was in war without any weapons. The JNA's strategy and policy was to destroy the city and all traces of a civilization, nation, culture and customs. Vukovar was placed in a battle that was marked by the bombing and destruction of the city, with the number of wounded and killed that was increasing rapidly. It was difficult to defend the city and the whole surrounding area. The geographic position made the defense harder even for the most powerful army and Vukovar itself was defended by poorly armed defenders. Also, the geostrategic position of Vukovar was in favor of the enemies, and Vukovar had soon turned into a hell, fire and death where every creature began to die already in early September 1991. The analysis of many events leads to the conclusion that the JNA had no elementary motivation for the war. The phenomenon of Vukovar has become the subject of many global analyses led by different military colleges that are interested in the balance of power during the war as well as the success of Croatian defenders who had managed to resist the enemy for whole 87 days, in the period from the 25th August to 18th November 1991.Vukovar has became militarily significant for the defense and survival of the Croatia, but also a symbol of resistance to the aggressor army. Based on the available sources, this work is only one contribution to the analysis of the heroic defense of Vukovar.