Its recovery involved Gen George S Patton.

"While in control of the Spear, the United States produced and deployed the largest force of destruction ever seen. After the destruction of Hiroshima and Nagasaki, The United States then became the world’s foremost super power.
On January 6th, 1945 the stolen Royal Treasure and the Holy Lance were returned to the Hofburg Treasure House and less than a year later, General George S. Patton was in a minor traffic accident. While the three others in the accident escaped without injury, General Patton died shortly after."