Adam Clarke on Hosea 10:14

Shall a tumult arise - The enemy shall soon fall upon thy people, and take all thy fortified places.

As Shalman spoiled Beth-arbel - Some think that this refers to Jerubbaal, or Gideon's victory over Zalmunna, general of the Midianites; see Jdg 7:8. Others think that an allusion is made here to the destruction of Arbela, a city of Armenia, by Shalmaneser, here called Shalman; and this while he was only general of the Assyrian forces, and not yet king. I think the history to which this refers is unknown. It seems that it was distinguished by some remarkable ferocities.

The mother was dashed in pieces upon her children - But when, where, how, and by whom, still remain unknown. Conjecture in such a case must be useless.