With reference to India's international humanitarian missions, consider the following pairs:
| Operations | Purpose |
|---|---|
| 1. Operation Dost | Earthquake relief in Turkey and Syria |
| 2. Operation Ganga | Evacuation of Indians from the Ukraine Conflict |
| 3. Operation Kaveri | Evacuation of Indians from Sudan |
| 4. Operation Ajay | Rescue from the Israel-Hamas conflict |
How many of the above pairs are correctly matched?