Energy security is the association between national security and the availability of natural resources for energy consumption. Access to (relatively) cheap energy has become essential to the functioning of modern economies.
Srivijaya was a Malay city state located in the island of
Sumatra in what is now the country of Indonesia. Srivijaya became a rich cultural
and trading center, and a regional hegemon due to being surrounded by the sea, and its close proximity to Sunda and
Malacca Straits. The straits were important
because much of the trading ships carrying spices, wood, and other raw
materials passes through them. Srivijaya was trading with China and controlled
the straits, making the state very prosperous and powerful. The state has
Buddhism as its main religion, and with its power and richness, established
several pilgrimages and shrines in the city too.
The Indo-European tribe called the Aryans invaded and conquered the Indus Valley Civilization, but many scholars believe that the collapse of the Indus Valley Civilization was caused by climate change.