Explanation:

- Operation Raahat was an operation conducted by the Indian Armed Forces in 2015.

- The mission aimed to evacuate Indian citizens from a conflict zone.

- Option:3, Yemen - This is the correct answer. The operation took place in Yemen amidst escalating conflict.

- Option:1, Syria - Unrelated to Operation Raahat in 2015. Syria faced a similar situation but at different times.

- Option:2, Iraq - Iraq has been a conflict region, but Operation Raahat did not target Iraq.

- Option:4, Sudan - Sudan is a separate context for Indian foreign missions.

- Option:5, Turkey - Turkey was not involved in Operation Raahat.