Freyja
One of the most well-known members of the Norse pantheon, Freyja was the goddess of protection, fertility, good fortune, love, lust, and the afterlife and one of the best female Viking warriors in history. She gladly gives of whatever she has to humanity as she travels through the heavens in a cat-drawn carriage. She was revered by the Vikings as a fertility goddess and was called for bountiful harvests as well as for healthy children and happy marriages, which were supposed to benefit from her blessings.
Her connection to combat and conflict has to do with her afterlife realm. It is stated that Freyja, who rules over Fólkvangr (also known as "Field of the People"), gathers half of the casualties from battle for herself, with the other half being gathered by Odin for Valhalla. Despite the fact that Fólkvangr is rarely addressed in works of Norse literature, what little there is suggests that Freyja may also watch while soldiers engage in never-ending combat—or at the very least, that there is a portion of Fólkvangr set aside for such battles.