Turkey’s parliament has ratified a joint defense agreement with Pakistan and Saudi Arabia, formalizing a three-country pact that commits the signatories to treat an attack on one as a threat to all three.

The 600-seat assembly approved the Mecca Joint Defense Agreement by 279 votes to 119 on Thursday, according to the Associated Press. Signed by the three countries in August, the 16-article agreement also calls for closer military coordination, intelligence sharing and cooperation in defense industries.

Turkey’s vote completes a key step in the agreement’s approval process. Reuters reported ahead of the vote that the pact contains a collective-defense clause and that Turkish officials said any support would be decided through consultations and in response to requests from Riyadh.

The agreement has drawn opposition in Turkey. Lawmakers who voted against it warned that the country could be pulled into regional conflicts and put its troops at risk. The agreement comes as Saudi Arabia faces attacks by Yemen’s Iran-aligned Houthi movement, AP reported.

Ratification establishes the framework for cooperation, but does not by itself specify what action the three governments would take in a future crisis. The pact’s implementation and any military support would depend on later decisions by the countries involved.

Sources: Associated Press: Turkish lawmakers approve a three-nation defense pact; Reuters: Turkey’s parliament set to ratify the defense pact.