Vanaheim is one of the Nine Realms, home to the Vanir.
In 2010, Vanaheim was invaded by the Marauders, a group of rag-tag pillagers. Three years later, the Asgardian army led by Thor and one of their own, Hogun, managed to defeat the Marauders and liberate Vanaheim from their oppression.
That same year, the Convergence occurred, and during the Battle of Greenwich on Earth, two Royal Air Force jets were transported to Vanaheim. Once the event ended, the jets returned safely to Earth.