The biggest concern of over 85% of the Bulgarian citizens is about terrorist threats, radical Islam and refugee wave, a public opinion survey made by Trend research center before the terrorist attack in Nice (France) and the coup attempt in Turkey, shows. As a result of the Greek crisis and the successful EU referendum in the UK (where most British nationals voted in favor of Brexit), 79% of the Bulgarians said they were expecting a new global economic crisis. 68% of them expressed positive attitude towards the EU. 44% of the surveyed nationals showed positive attitude towards NATO. 65% of the Bulgarians showed their sympathy towards Germany and 60% of the citizens showed sympathy towards Russia. 35% of the polled citizens showed positive attitude toward the USA and 30% of the surveyed nationals express negative attitude towards that country.