This thesis was made for the purpose of research on the implementation and organization of teaching during extraordinary circumstances. The concept of extraordinary circumstances in this paper is considered to be the Homeland War and the SARS-CoV-2 virus pandemic. Through this work, the required answers to the set hypotheses were obtained with a survey questionnaire. The hypotheses set for this thesis were divided into two parts. 3 hypotheses were set for the part of the survey questionnaire on the manner and conduct of teaching during the SARS-CoV-2 virus pandemic and 3 hypotheses were set for the part of the survey questionnaire on the manner and maintenance of instruction during the Homeland War. The Homeland War in the Republic of Croatia lasted from 1991 to 1995.People fought for their lives and feared for the lives of their families. No one was sure. Locked in basements, they listened daily and expected the sound of an alarm siren. The children did not attend school regularly, but classes were held on radio and television. The vast majority of people in the occupied area had to leave their homes. After the most significant battle that marked the end of the Homeland War - Storm, Croatia was able to breathe a sigh of relief. About 30 years later, again locked in their 4 walls, the inhabitants of Croatia this time fear the deadly SARS-CoV-2 virus. All catering facilities are closed, the school takes place remotely - online. This time, children can attend classes in the warmth and safety of their home. All technology is available to teachers. The number of infected is growing day by day, the situation in the world has grown into a global pandemic. People are afraid for themselves, for their families. Finally, a vaccine against the virus is emerging and global population vaccination is underway.