Combining Seperate Bones

How can you combine separate bones to one single skeleton? For Example I made one bone and another bone how can they be combined?

if you want them to react simultaniously, you got to parent one bone to the other. if you want to connect the tips of two bones you have to move the tips at the same coordinates and check the checkbox “connected” in proberties > bone > relations of the childs bone. if you create a new armature, you only have to extrude the childbone from one of the tips of the parent bone. it will be automatically connected.

If these are seperate Armature, be in Object mode, select all the Armatures, Join them (CTRL+J). If you mean connected, then S-Markt is correct, you want to parent them.

Thanks guys for the helpful advice