According to Croatian Foreign Minister Mate Granic, American officials gave advice on the conduct of the operation, and European and military experts and humanitarian aid workers reported shipments of U.S weapons to Croatia over the two months preceding the invasion. Analysts at Jane's Information Group say that Croatian troops were seen wearing American uniforms and carrying U S. communications equipment. The invasion of Krajina was preceded by a thorough CIA and DIA analysis of the region. In November 1994, the United States and Croatia signed a military agreement. Immediately afterward, U.S. intelligence agents set up an operations center on the Adriatic island of Brac, from which reconnaissance aircraft were launched.
Croatian sources claim that U.S. satellite intelligence was furnished to the Croatian military.
When former Ustasha official Vinko Nikolic returned to Croatia, Tudjman appointed him to a seat in parliament. Upon former Ustasha officer Mate Sarlija's return to Croatia, he was personally welcomed at the airport by Defense Minister Gojko Susak, and subsequently given the post of general in the Croatian Army. In an open letter, the Croatian Jewish community protested the rehabilitation of the Ustasha state. Naturally we are not going to allow them all to return. In some cases, they dynarnited homes with the families inside.