The military rise of Haidar Ali rested partly on deliberate adaptation to the strengths of his opponents.

Consider the following statements in support of the above assertion:

1. He obtained French assistance to establish an arms factory at Dindigul.
2. He introduced Western methods of training into his army.
3. He recognised the need for swift cavalry and effective artillery against the Marathas and the Nizam.
4. He allowed French officers to develop into an independent pressure group within Mysore.

How many of the above statements support the assertion?