Fortifications are militaryconstructions designed for defensivewarfare. They have been used for many thousands of years, in a variety of increasingly complex designs. The practice of improving an area's defense is also known as "fortification". Many military installations are known as forts, although they are not always "fortified".
... is when the urethra develops between the penis and the scrotum.
Infection of the urethra is urethritis, said to be more common in females than males. Urethritis ...