When asked by Krishna about how they can prevent the war
Sahadeva replied by going in their weapons room and bringing Bheem’s mace ,Arjuna's gandiva ,his and Nakula's swords and other weapons and replied “ To stop the war we must do these 3 things
First we must destroy Bheems and Arjuna's mace and gandiva as the Pandava forces are depended on them for their victory
Second ,we must send the pandavas and kauravas to the dungeon and make Karna the emperor
Third ,we must send send all the elders like gandari , kunti , dridrastra , vidura , guru drona and krip , bhimsa and vidura to the jungle so that they don't intervene for the second point .
But Sahadeva s suggestions were neglected as Arjuna and Bheem had to take revenge
Post war after Yudhistir knew the that Karna was his elder brother
Then he ruled on behalf of Karna for 36 years and daily just like Karna did he also donated 15 kilos of gold to the regular public
Karna's youngest son Vrishaketu was the last of Karnas legacy . He was also the last person on the Earth to know the secret of divine weapons . He was trained and given these celestial weapons by lord Krishna and Arjuna .But he was told by the Lord to not to tell it to anyone in the Kaliyuga .
He was later killed by Babruvana the son of Arjuna from Chitraganda during the ashvameda or horse sacrifice
The insect which bit Karna was THE lord indra himself . He came there so that the Karna would not disturb his teachers sleep but the blood from his body would and enrage Parshuram to give karna a curse for not telling him , his original caste
image source :google
Bhisma said that he either do one of the following things in Mahabharata
1 He would kill Arjuna
2 He would make Lord krishna Take weapons .
And he was so fierce that he would have killed Arjuna , but Lord Krishna remembered what Bhisma said and Took his Advantage , He broke his own vow and took up a broken chariot wheel to kill Bhisma , to save his helpless Devotee Arjuna .
But was stopped by Arjuna .
Image source : Google
Krshna with the chariot wheel , going towards Bhisma
Ever wondered Why Lord Krishna , The epitome of rightousness , The reincarnation of Lord Vishnu Himself . Would do a wrong thing of killing Karna when he was Weaponless and He also prompted Arjun to kill Karna from the back .
Well the Answer to this thing goes way back
PAST : When Lord Vishnu told lord Indra that he would incarnate as Krishna and Lord Indra has to give a child to Kunti i.e. Arjuna
Then Lord Indra said that when in treta yuga when Indra had a child i.e. Vali , He was killed in the back by Lord Ram i.e. the incarnate of Lord Vishnu . And he supported Sugreev lord surya’s child . Then Indra said that , Lord vishnu as Krshna must support Arjuna and kill Sun god ‘ child that is Karna in the back .
And thats why Lord Krishna prompted Arjuna to kill Karna in the back to maintain cosmic balance and also to make Indra’s wish true.
another factor would be that Krishna and Arjuna are reincarnations of Nara and narayana, two twins who fought and defeated a demon who was the previous avatar of karna.
the demon had 100 armours that would kill the person who destroyed it. Nara and narayana could revive each other and took turns destroying the armour 99 times. After which the demon went running back to surya.
karna was born with that last armour as his kavach.
image source :google