This nest building behavior is instinctual for male bettas and it is not necessary to have a female present to observe your betta building his nest. Most males will blow bubbles but the rate and size of the nest seems to depend on the individual male and possibly, other factors like age, health and water parameters.
Berlin was always the centerpiece of the Cold War and, more often than many remember, very nearly the front line of real combat. At the end of World War II, the city was divided into four sectors, each occupied by one of the four allied armiesâU.S., Soviet, British, and French.
The most serious Cold War confrontation between the United States and the USSR that took place in October, 1962. The U.S. discovered that the Soviets were in the process of positioning nuclear missiles in Communist Cuba. The United States sends naval blockade to stop Soviet ships carrying missiles to Cuba.his event ends America's monopoly of atomic weaponry and launches the Cold War. In the 1950's, The Arms Race became the focus of the Cold War. America tested the first Hydrogen (or thermo-nuclear) bomb in 1952, beating the Russians in the creation of the Super Bomb.