What the story of Hiroo Onoda can teach us about the importance of surrender.

When we’ve experienced the sharp disappointment of being let down by others, when is the right time to accept what happened, embrace what is and move forward into what could be? Although debating exactly how long holding onto righteous anger is understandable, the example of Hiroo Onoda demonstrates the dangers of clutching it for too long. Let me explain.

Hiroo Onoda was born into a Japanese military family in 1920. With World War II raging, at age 18 he enlisted to fight for the Imperial Japanese Army Infantry.

Becoming a commando, in 1944 he was sent to the island of Lubang in the Philippines and ordered to take a defensive position, to not surrender and to fight until the end of the war.

The following year, in February of 1945, American Marines landed, swiftly defeated the Japanese on the island and accepted the surrender of most of the surviving Japanese fighters.

Most, but not all.

Onoda and three others refused to surrender. They retreated higher into the mountains, deeper into the jungle and awaited reinforcements to continue the fight. Seven months later Japan officially surrendered and the war was over. The agony of war finally ended; a rebuilding process began for Japan and the entire world.

Except for four Japanese soldiers on Lubang Island.

Living off bananas, coconuts and stolen livestock from nearby farmers, they continued the war.

Over the years, pamphlets were dropped from planes explaining the war was over, but the men assumed they were frauds. Personal letters from family were dropped, but the men assumed family members had been coerced by the enemy to write them. Knowing the war could never be lost, they held firmly onto their guns and their hatred of the enemy.

Undeterred, the men conducted guerilla warfare. They attacked nearby farmers and villagers assuming they were simply following orders. Over the course of years, the men burned innumerable houses, destroyed fields of crops, and killed almost three dozen locals. Eventually, due to death, capture or desertion, Onoda was the last of the four.

A single soldier, fighting a World War, by himself, for the next three decades.

Imagine that: Three decades of fighting a war that had already ended.