"For centuries, we peasant workers have been sent by the rich into the tunnels to die, from disease and famine! But that time has passed! All these years of toil are nearing their end - now, we take back our world!"
- Leonard von Digg's address to the Union.
The Mining Union, also called the Miner's Party, is a paramilitary labor union that is run by the Mole digger/miner class. The Mining Union bears striking resemblance (in terms of ideals) to the Soviet Bolshevik party. The Mining Union was created in the 2050s-2060s by Jack von Digg, architect of Earth's raw mineral tunnels. The Union was strongly against class inequality, but also recognized the need of the poor working class to overthrow the rich and affluent classes.
In the mid 2100s, The Union, under the command of Jack's son Leonard, struck the surface world in a lightning war of rapid dominance. It was discovered that this military act was actually not spontaneous, but was methodically planned by the New World Order and more specifically Boss Cass, as a contingency plan to annihilate the UN in case his empire fell. During the entire Mining Union War, several million soldiers, and civilians lost their lives.
After the war's conclusion, the Mining Union was weakened greatly. Also, world governments placed restrictions on their activities. However, they were offered eventual redemption. This redemption would be granted to them if they agreed to hold off the marauding forces of the Locust Horde that dwelled below Earth's cities and mining tunnels alike. After agreeing, the Mining Union went into battle against the Locust, and still fights them today, to protect Earth's surface, and the Union's interests, from the subterranean monsters.