Coalition-Skaikru Conflicts

The Grounder-Delinquent Conflict is an important event featured in The 100. This conflict was fought between the Delinquents and the Grounders and lasted all of season one. If also lasted the first half of season two. During the final battle, Finn and Lincoln led Reapers back to the 100's camp to help fight off the Grounders.

Combatants
This is the full list of those who participated in this war.

The Grounders

 * Tristan
 * Anya
 * Lincoln
 * Many Unnamed Grounders

The Delinquents

 * Bellamy Blake
 * Clarke Griffin
 * Octavia Blake
 * Finn Collins
 * Jasper Jordan
 * Raven Reyes
 * Miller
 * Harper
 * Drew
 * Monroe
 * Sterling
 * Many Unnamed Delinquents

The Reapers

 * Many Unnamed Reapers

Deaths

 * Drew
 * 30 Delinquents
 * 300 Grounders
 * Many Unnamed Reapers

Throughout the Series

 * -|Season One =

In The 48, It is revealed that Tristan, Bellamy, Finn, Monroe, Sterling, and an unnamed Delinquent have survived the explosion. Bellamy finds Monroe and Sterling and asks them how they survived. Sterling mentions that they went to find the Ark in hopes to bring back reinforcements. They than hear movement and see Tristan and a horse with Finn and an unnamed Delinquent being dragged along. The unnamed Delinquent falls and can't get back up. Tristan gets off his horse and grabs the Delinquent and slits his throat. Finn protests and Tristan mentions that was only one and he lost three hundred.
 * -|Season Two =

Back at camp, it is revealed that Raven, Murphy, and an unnamed Grounder have survived the explosion. The unnamed Grounder enters the Dropship and spots Raven lying on her side. He approaches and when he touches her, Raven rolls over and shoots him point blank in the face.

Later, Bellamy tries to attack Tristan to get Finn back. However, Tristan once again, defeats Bellamy. With Bellamy tied up Monroe and Sterling watch on. Monroe tries to be brave and runs out to help Bellamy and Finn, with Sterling following. However, before the two can attack Tristan, he is shot by Marcus Kane.

In Inclement Weather, Octavia kidnaps The Woods Clan's only healer, Nyko, in order to get Lincoln back.

In Reapercussions, Finn kidnaps, brutally interrogates, and kills Delano, an exile from The Woods Clan, in order to receive information about Clarke's whereabouts. Indra also makes an exception and fights alongside Octavia against the Reapers.

In Many Happy Returns, Anya abducts Clarke and tries to take her back to her own people. But Clarke gets the drop on her, taking Anya as prisoner. Later while Clarke is distracted, Anya gets up and starts to fight her. Clarke ultimately wins, however, she doesn't kill her but instead hits her in the face numerous times. As they approach Camp Jaha, Clarke sets her free in an attempt to end the conflict with the Grounders. This is quickly ended as Anya is shot down by a member of Camp Jaha, thus continuing the war with The 100 and Grounders.

In Human Trials, Finn sets fire to The Woods Clan's camp, takes everyone in that area hostage, and later massacres them by gunning them down, believing that they have murdered his friends.

In Fog of War, Gustus forces Kane and Jaha to fight to the death in order to get justice for the massacre. Kane slits his own wrists and The Commander sees that Kane's intentions are honorable and allows his friend Jaha to go, with a message (Leave or die), back to his people.

In Long Into an Abyss, Clarke manages to work out a truce with the Grounders after showing them that she can turn Reapers back into men. However, The Commander states that she needs one thing in return, and Clarke agrees to give her anything. The Commander says she needs Finn because the truce starts with his death. Nyko also attempts to kill Finn because of the massacre he had created.

Quotes
"You expect us to trust a Grounder? This is our home now. We built this from nothing with our bare hands! Our dead are buried behind that wall in this ground! Our ground! The Grounders think they can take that away. They think that because we came from the sky, we don't belong here. But they've yet to realize one very important fact: We are on the ground now, and that means we are Grounders!"

- Bellamy's speech to the other Delinquents about the upcoming battle with the Grounders in We Are Grounders (Part 1).

"I understand. You started a war that you don't know how to end."

- Anya accusing Clarke and the other Delinquents of starting a war between the two groups in Unity Day.

"Well, if we weren't at war already, we sure as hell are now."

- Finn to the group about starting a war with the Grounders in Unity Day.

Trivia

 * This is the first present-day battle to be shown in The 100.
 * NOTE: Present-day refers to the present-day in the show (which is 97 years in the future)


 * The final battle consisted of three groups of people; the Reapers, the Grounders, and the Delinquents.


 * Although the war went on for the whole first season, the final battle between the Grounders and the Delinquents took place in We Are Grounders (Part 2).


 * The Grounder units involved in the war were Tristan's and Anya's.


 * The battle took place in the Delinquents' camp.


 * The war officially started in Unity Day after a failed peace meeting.
 * Like planned, the Reapers did help fight the Grounders. However, the Reapers are not allied with the Delinquents.
 * The Delinquents used the idea of "the enemy of my enemy is my friend".