Карачай в нач. 19 века.
Расселение родов.

Балто-славянские ветки R1a у адыгов.

Об R1a в целом читайте здесь.

𝐖𝐡𝐚𝐭 𝐲𝐨𝐮 𝐬𝐡𝐨𝐮𝐥𝐝 𝐤𝐧𝐨𝐰 𝐚𝐛𝐨𝐮𝐭 𝐭𝐡𝐞 𝐊𝐚š𝐤𝐚 𝐩𝐞𝐨𝐩𝐥𝐞 𝐢𝐧 𝐭𝐡𝐞 𝐁𝐫𝐨𝐧𝐳𝐞 𝐀𝐠𝐞

The Kaska were a group of semi-nomadic clans or tribes who lived in the northern region of the Pontic mountains bordering on the Black Sea.

They constituted the greatest threat to the powerful Hittite empire. No superpower of the Bronze Age, could match the damage the Kaskians inflicted to the Hittites. It is argued whether they were responsible for destroying the Empire.

They were very mobile, without a center of power, moving their cities or resettling them after a Hittite attack. In the period of reign of Tudhalya II, a Kaška invasion ended in the sacking of the Hittite capital Hattusa. The Kaška presence in Anatolia continued efter the fall of the empire, with the last record of their name appearing in the Luwian tablets of Tabal (ca. 730 BCE).

Kaška were a branch of Hattic. No no written records except of some recorded by the Hittites.

G2a2-M406 is associated with Kaška:
www.yfull.com/tree/G-Y134757*/

Taken here.