The idea that female medieval warriors only exist in fantasy is made up by misogynists to gate keep female representation.
Here is a list of named women that participated in battle. Keep in mind that this is just the tip of the iceberg given the erasure of women in history
Joan of Arc
Eleanor of Aquitaine
Æthelflæd
Artemisia I of Caria
Zenobia
Matilda of Tuscany
Margaret of Anjou
Tomoe Gozen
Grace O'Malley
Isabella I of Castile
Fu Hao
Teuta
Joanna of Flanders
Lozen
Jeanne Hachette
Caterina Sforza
Khawla bint al-Azwar
Lagertha
Sikelgaita
Mavia
Dihya
Isabella of France
If you want women in your fantasy novels, why not - it's fantasy.
Let's be real though - sexual dimorphism is very pronounced in humans, and the women you listed were absolutely the exception. Militaristic societies overwhelmingly used men for fighting, if only because women were too valuable for their ability to bear children.
It's impossible to overstate the importance of women throughout history, but they don't have to have been physically fighting in wars for that to be the case.
None of this changes the fact that we are taking about fantasy, where female representation is deemed more far fetched by misogynists than the existence of elves and magic. Something that has literally never existed before somehow has more credibility and reason to exist than female combatants who have actually existed.
This is the state of gatekeeping in the fantasy genre. If you think that there isn't a problem, you are part of the problem.
I'm sorry my words have upset you. We have a slight difference of opinion on something, and that's okay. I don't feel it would be productive to continue the discussion, but wish you the best in life nonetheless.
It's not clear what you're apologizing for. I do like how sexism has been reduced to 'a slight difference of opinion' now.
Funny how the discussion was considered productive when your response was 'Yes, you're very angry', and no longer productive when the misogyny was pointed out.
LOTR is not set in the medieval period. Its a made up era with made up cultures and made up magic. And if you're going to get all Thermian argument about it, LOTR lore has many female warriors.