units (SPUs) transferred to the ZNG, forming four brigades. By July the ZNG had approximately 8,000 troops and, unlike other Croatian forces, were fully equipped with small arms. The reserve police force, numbering about 39,000 in April, was also transferred to reserve ZNG brigades and independent battalions. On 18 May the Zrinski Battalion was established as a special forces unit of the ZNG, its core consisting of 27 volunteers drawn from the Kumrovec SPU. Initially, it also relied on former French Foreign Legion troops. By July, the reserve force of 40,000 ZNG troops was assigned to 19 brigades and 14 independent battalions; however, they did not possess sufficient heavy or small arms for all their personnel. The Croatian police had approximately 15,000 small arms, with less than 30,000 additional weapons obtained from abroad by August. On 28 May, the ZNG was presented to the public in a military parade at the Kranjčevićeva Street Stadium to boost morale. The parade featured approximately 800 soldiers, a dozen anti-aircraft systems, armoured cars and several armoured personnel carriers; the Presidential Guards and Alkars also participated. Development problems To command individual units, regional ZNG commands were established in eastern Slavonia, the Banovina–Kordun area, Lika, central and northern Dalmatia, southern Dalmatia and Zagreb in late July and August. Crisis headquarters, which also had command authority of ZNG units, were established down to the municipal level. The command structure was particularly poor, preventing effective coordination between units. Although the many crisis headquarters were entrusted with a high level of authority, they consisted of politicians with little (if any) military training other than JNA service. Multiple units deployed to a single area often had no authority coordinating their activities. TO command systems were reactivated in some places (such as Zagreb), somewhat improving the situation. Other problems faced by the ZNG included a shortage of trained officers, inadequate troop training, a shortage of weapons and especially a shortage of ammunition. Mobilisation proved particularly successful, however, and troops were plentiful; in Zagreb, approximately 80 percent of those called up in September and October reported for service. The ZNG were short of uniforms; 20 percent of those drafted in Zagreb during this period received uniforms, while the remainder fought in civilian clothes. The ZNG also relied on the civilian infrastructure for food, fuel and medical care. Špegelj was replaced by Šime Đodan as Defence Minister in July. He remained in command