GfK carried out a public opinion over the telephone on 1,000 people between 10 and 17 May.
The agency said that the citizens had adopted a more positive attitude toward NATO because of the government's campaign aimed at providing the public for relevant information concerning Croatia's admission into the alliance.
Answers to the question about how safe and strong would Croatia be on the international front once it joined the alliance with Germany, France, the United States, Great Britain and other NATO member states. show that nearly four fifths of Croats are convinced that the country would be safer and stronger once it joined NATO.
According to regions, residents of Istria, Primorje and Gorski Kotar, as well as Dalmatia are more inclined to believe that Croatia would grow weaker.
Over 80 percent of respondents up to 55 years old believe that Croatia would be safer and stronger after joining alliance.
Asked to estimate the time when would Croatian join NATO, 47 percent believe that the country would be admitted in the next two to five years and only five percent of those taking the survey said Croatia would not join the alliance.