The agreement was one of five signed as the two countries said they would deepen defense cooperation and work to prevent renewed conflict in the Gulf.
On Friday, Turkish President Recep Tayyip Erdogan and Qatari Emir Sheikh Tamim bin Hamad Al Thani signed five agreements in Istanbul, including a mutual defense pact strengthening bilateral ties.
Turkey and Qatar have maintained defense ties since 2017, including the hosting of Turkish troops in Doha; the new deal formalizes a mutual defense obligation between the two nations.
The Turkish president's office stated the agreement "would add another dimension to our brotherhood," signaling deepened strategic cooperation in defense matters between the two nations.
President Erdogan stated the pact aims to "prevent the resurgence of war in the Gulf region" and establish dialogue for regional peace, the presidency said in a statement.
Cooperation in the defense industry between Turkey and Qatar will continue to grow, according to the Turkish president's office, positioning both nations for expanded bilateral industrial relations.