History has witnessed then-thousands of battles. Millions of soldiers, thousands of kings, and thousands of fortresses were involved. A strong fortress surrounded by firm walls was the key element in winning many of those wars, forcing invaders to leave desperately. Our body is the unique fortress in history. A well-found citadel that has made many aggressors disappointed. Regarding the latest pandemic, people became aware of the necessity of doing simple things ti keep the disease away. Simple things like wearing a simple mask. The gate for our fortress. So keep the gates closed and make these tiny offenders disappointed.