(References to Vantaa)
Note: X and Y are coordinates (light years on XY plane) relative to Terra at (0, 0)
X: -72.59 Y: 354.01[e]
- 2596 - Lyran Commonwealth 
- 2750 - Lyran Commonwealth 
- 2765 - Lyran Commonwealth 
- 3025 - Lyran Commonwealth 
- 3030 - Lyran Commonwealth 
- 3040 - Federated Commonwealth 
- 3052 - Clan Wolf 
- 3057 - Clan Wolf 
- 3062 - Clan Wolf 
- 3066 - Clan Jade Falcon 
- 3071 - Clan Hell's Horses (from August) 
- 3130 - No record 
Vantaa was conquered by Clan Wolf during Operation Revival as part of their Third Wave of attacks in July 3050, with major battles taking place at Odrade's Lament, Teg Acres, Spider's Climb and Duncan's Rift. The planet was defended by the surviving two-thirds of the 10th Donegal Guards, which had earlier faced the Wolves at Chateau, along with Alpha and Bravo battalions of the Third Regiment, 12th Star Guards. Marshal Sarah Steiner, upon receiving the batchall of Star Colonel Carmin Winson, truthfully stated her forces' strength and request that the desert of Shaitan Valley serve as the designated battleground. The Star Colonel Agreed and deployed the 7th Battle Cluster. The two sides met and engaged each other according to the proscriptions of zellbrigen, with combat consisting of honorable duels between individual warriors. When half of her units had been destroyed Marshal Steiner requested that the remainder be allowed to withdraw and, much to her surprise, Star Colonel Carmin Winson granted her hegira.
In 3071, the Clan Wolf occupation zone was itself subject to an invasion, as Clan Hell's Horses carved itself a holding in Spheroid space. The Hell's Horses conquered had conquered Vantaa by August of 3071, but in December forces from Clan Ice Hellion struck at the Hell's Horses on Vantaa and the nearby world of Seiduts in retaliation for the Horses conquering a number of of worlds that the Ice Hellions had only recently acquired from Clan Jade Falcon. Three months later in March 3072 troops from both the Jade Falcons and Hell's Horses landed on Vantaa, beginning a series of battles that would lead to the shattering of the last of the Ice Hellion forces in the Inner Sphere in the last two weeks of April, but which also compromised the vital life-support industries on the planet.
In early 3072, after the decisive battle of Clans Jade Falcon and Hell's Horses against Clan Ice Hellion the planet has been depopulated.
Planets within 2 jumps (60 light-years). Closest planets first:
- Historical: Reunification War, p. 159, "Inner Sphere Map "
- Era Report: 2750, p. 37, "Inner Sphere - 2750"
- Historical: Liberation of Terra Volume 1, p. 11, "Inner Sphere - 2765"
- House Kurita (The Draconis Combine), p. 132, "District and Prefecture Boundaries of Kurita Space"
- Historical: War of 3039, p. 133, "Inner Sphere - 3040"
- Field Manual: Updates, p. 52
- Jihad Hot Spots: 3076, p. 17, "Timeline of the Jihad"
- Map of the Inner Sphere 3130
- Wolf Clan Sourcebook, p. 60
- Jihad Hot Spots: 3076, p. 20, "Timeline of the Jihad"
- Jihad: Final Reckoning, p. 50, "The Jihad In Review"
- Jihad Hot Spots: 3076, p. 21, "Timeline of the Jihad"
- Jihad Hot Spots: 3076, p. 22, "Timeline of the Jihad"
- Jihad Secrets: The Blake Documents, p. 31
- Objective Raids, p.32