Explanation:

2 and 3 only

The participating King was not relieved from the responsibilities of securing internal and external security; instead, the British armed contingent stationed in the participating territory was meant to handle these responsibilities.

A British armed contingent was to be stationed in the participating territory, and the expenses for maintaining this contingent were to be borne by the participating state.

The ally was not free to enter into agreements or warfare on his own will. The British East India Company sought to control and influence the foreign policy of the participating state.

Therefore, statement 1 is incorrect, while statements 2 and 3 are correct.