The year is 1939, Soviet troops are marching on Finland

As they cross the border, the general hears a Finnish voice just over a hill saying "one Finnish soldier is better than 10 Soviet soldiers!".

The general laughs and sends 10 soldiers to take the hill, after a minute or so of gunfire, the same voice says "one Finnish soldier is better than 100 Soviet troops!"

Baffled and annoyed, the general sends 100 soldiers to take the hill, after about 5 minutes of gunfire and explosions, the same voice says "one Finnish soldier is better than a thousand Soviets!"

Furious, the general sends 1000 troops to take the hill, complete with tanks, high explosives, aircraft and artillery, and tells them not to return until the hill is taken. After half an hour of all hell breaking loose, everything falls silent. One Soviet troop, severely wounded and battered, drags himself to the general and says "don't send any more troops, comrade general, it's a trap, there's two of them."