Although Nepal is a small country, it had been sovereign throughout its history. Nepal was never ruled by any other force. It means Nepalese people don't have any independent day to celebrate. While India and most of the countries were colonized by England (East India Company) and Tibet by powerful China, Nepalese people didn't have to face the fate of being ruled by external force. It always remained independent and the credit goes to strong and brave Nepali soldiers known as Gurkhas.

Source

Better to die than be a coward

"Better to die than be a coward." was the motto of Gurkha soldier and with this motto, Gurkhas were able to protect Nepal and won many popular wars across the world. The brave Gurkhas fought against East India Company from 1814 to 1816. With 2 years of continuous war, the most powerful empire in the World, England couldn't win against Nepal and colonize Nepal. So, they signed a peace treaty with Nepal with a condition that Gurkha army will join the British Force.

Source

The Gurkha army's trademark is Khukuri, and Gurkhas believe that it must get the blood when unsheathed. For British, Gurkhas army fought both the world wars. The most famous victory came for Gurkhas in Falklands war. The other operations in which Gurkhas fought were Bosnia, Kosovo, Afghanistan, East Timor, and Sierra Leone.