I guess I should make this topic again after having conversed with Robert_Silvermyst and Chipper Blu-wolf about it.

There was a previous topic long ago, but it's very old and numerous links in it are dead.
Anyway, I've been fixated on an old anime series made by Sunrise Inc. from 1995 called Wild Knights Gulkeeva.
https://en.wikipedia.org/wiki/Wild_Knights_Gulkeevahttps://www.youtube.com/watch?v=auC_M2WuwL0https://www.animenewsnetwork.com/encyclopedia/anime.php?id=145The series (26 episodes) isn't very well known outside of Japan as it has never been brought to and shown in the U.S. As for why, I don't know. Maybe it just wasn't that popular or appealing? What piqued my interest in this series was the anthropomorphic characters in it known as Beast Warriors or sometimes called Animaloids (Animal Humanoids). For those trying to find and buy the series on DVD, I wish you good luck. I'm one of the few people that has it, thanks to my best friend getting it for me.

Don't ask me where he got it from as I don't know. But for those who want to try and find the DVD set, it should look like the following.
Don't settle for anything less!https://c1.staticflickr.com/9/8246/28563633414_a3515b6c8f.jpghttps://c1.staticflickr.com/9/8816/28563633434_4b81323e1a.jpghttps://c1.staticflickr.com/9/8079/28563633444_af0057091c.jpghttps://c1.staticflickr.com/9/8098/28563633474_817fcaf6bc.jpgThere is also a "Memorial Box Set" that has 5 colored discs instead of the normal 3. As for what else makes this Memorial box set special, I do not know.
https://c1.staticflickr.com/9/8081/29171597276_26647a9d06.jpghttps://c1.staticflickr.com/9/8348/29171597306_3af1e141f8.jpghttps://c1.staticflickr.com/9/8217/29205844635_4ea59d5bec.jpgThe 26 episodes of the series:
Episode titles:
1. Knights Need To Be Together With Their Beasts
senshi wa kami juu totomoni
戦士は神獣とともに
2. The Legendary Spirit of the Knight
densetsu toiu na no honoo
伝説という名の炎
3. What Am I Fighting For?
kono omoi dare ga tame ni
この想い誰がために
4. The Lost Knight
aoki senshi no meisou
蒼き戦士の迷走
5. The Spreading War
bara wa senka ni moeyu
薔薇は戦火に燃ゆ
6. A Man With the Warrior`s Eyes
senshi no me wo motsu otoko
戦士の眼を持つ男
7. The Shivering Smile
hohoemi wa senritsu wo utau
微笑[ほほえみ]は戦慄を唄う
8. Love of a Fierce Warrior
mahoroba no kyou senshi
まほろばの凶戦士
9. There`s a Light Breeze
suzukaze no fuku basho
涼風の吹く場所
10. The Great Earth is Peaceful
akaki ha, ao ni chiru
赤き刃、青に散る
11. The Start of the Nightmare
seinaru akumu no jokyoku
聖なる悪夢の序曲
12. A New Soul Has Been Awakened
arata naru tamashii no mezame
新たなる魂の目覚め
13. Stubborn Beast Warriors
mou i hangyaku no shishi senshi
猛き反逆の獣戦士
14. Fugitive in the Rain
ame no toubou sha (soushuuhen)
雨の逃亡者(総集編)
15. The Faraway Heart
kokoro haruka ni
こころ遥かに
16. A Nightmare in the Morning
ashita ni furu yami
朝[あした]に降る闇
17. Many Nights
tawamure no yoru
戯れの夜
18. The Howling Fang
doukoku no kiba
慟哭の牙
19. Black Udon
kuroi udon
黒いうどん
20. Golden Snow Scene
kane no sekkei
金の雪景
21. Warm and Sorrowful
atsuku kanashiku
熱く哀しく
22. Fated Prophecy
unmei no yokan
運命の予感
23. Longing
ai takute
会いたくて
24. To The Ends of Bewilderness
samayoi no hate
彷徨[さまよい]の果て
25. Senshi Kira
senshi aki
戦士煌
26. Semshi Toya
senshi momo ya
戦士桃矢
The story/plot of the series is a bit hard to understand, but not impossible. Mostly because of the poor dubbing/translations which IMO are only about 75% accurate.

Don't expect any fancy CGI in this series. It is all "old school" anime which is hand drawn. This series, from what I've seen on the Net, has mostly recieved a 3 or 3 1/2 rating out of 5. So it's neither good nor bad, but rather average or "slightly" above average.
It's been awhile since I've watched this series, but I'll try to remember what I can.
PLOT: Touya is your average Tokyo high school student until one day, forces from another world/dimension called Darknoids, attack the city on a mission to look for something. Three Beast Warriors from the same/similar world and/or dimension travel to Earth to stop the Darknoids. During the first 1-3 episodes, we soon learn that Touya (and his parents) are not from Earth, but instead from another world where the Darknoids and Beast Warriors come from (Read the Wikipedia article further above). Not only that, but it appears Touya has the long dead spirit of an ancient warrior named Radias inside him. So I guess Touya is the reincarnation of Radias? With his new Beast Warrior friends (Greyfus, a wolf; Beakwood, a eagle; and Garriel, a gorilla) helping him, Touya is able to defeat the Darknoids. But the Darknoids always come back to Earth wreaking more havoc and chaos. They always send some form of large robotic beast piloted by various henchmen to Earth to fight and destroy Touya, his friends, and cause general chaos.
As for Touya's other human high school friends, there is Kira (Lavendar colored hair) who we find out that he is also a knight warrior with special powers/abilities just like Touya, but not until the middle of the series. Unfortuneately, he dies towards the end of the series. Then there is Konoha who cares for Touya and seems to have a crush/fall in love with him. Nothing special about her. She's just your average high school girl.
The Darknoids are commanded by Prince Zaza who looks childish like a young teenager.

He is the main antagonist. There is also one female Darknoid which I forgot her name. Apparently, I think she suffers amnesia towards the end of the series and changes her allegiances.
As for why the Darknoids keep attacking Earth, it's not so much an invasion, but rather they keep looking for something. Toward the last episodes of the series, I believe it was mentioned/shown they were looking for objects that would help "switch" their world with Earth. They wanted to bring their world (Which was dying) to our dimension, and send Earth to their dimension, thereby saving their own world.
To fight the Darknoids, Touya, his friend Kira, and the Beast Warriors, all have green star shaped crystals that when activated, gives them special powers/abilities and armor. Touya and Kira "transform" into Knights, and the Beast Warriors transform into larger and more powerful feral animal forms. This series is not without a bit of comedy too. There's a blonde woman character who seems to have a crush on Greyfus.
EDIT - 7/1/2017 - When I originally posted this topic, I had included a large list of links to images of characters and scenes from the Wild Knights Gulkeeva series. Unfortuneately for reasons beyond my control, the majority of links ended up being dead and/or the images weren't showing for other reasons. If people wish to find images of the characters from the show, then a simple Google image search should suffice. Some search terms to use might be the following:
Juusenshi Gulkeeva
Juu Senshi Gulkeeva
Juu Senshi Garukiba
Wild Knights Gulkeeva
Beast Warriors Gulkeeva
Beast warrior GarukibaA selection of fan art I've seen on the Net.
http://orig08.deviantart.net/2e33/f/2010/008/f/e/great_warrior__greyfus_by_aokamidu.jpghttp://pre07.deviantart.net/0228/th/pre/f/2010/008/7/e/graceful_soldier__beakwood_by_aokamidu.jpghttp://orig03.deviantart.net/e50f/f/2010/008/e/7/hearty_fighter__garriel_by_aokamidu.jpghttp://orig15.deviantart.net/745e/f/2010/082/2/b/hard_headed_brawler__tedium_by_aokamidu.jpghttps://static.hummingbird.me/anime/poster_images/000/002/793/original/title_Voin_Gulkiba_Juusenshi_Gulkeeva_11423_2291.jpg?1431568556https://simkl.net/posters/29/2916790686b534fe0_w.jpgThat concludes my "review" for this series. Thanks for reading. 