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.
exists and is an alternate of . Long-time student of Military History and expert on the history of the Second World War and in its strategy, tactics, weapons, equip., etc. Josef Stalin-dictator of the Soviet Union is responsible for starting the 'Cold War' at the end of World War Two. His territorial ambitions, brutal suppression of Poland (an allied power), and continued occupation and repression of Eastern Germany & other eastern European countries were the primary causes.