May 28 is observed as Youm-i-Takbeer to mark the day when Pakistan became an atomic power. In 2024 Pakistan marked the ___ anniversary of nuclear tests.

The correct answer to the question: "May 28 is observed as Youm-i-Takbeer to mark the day when Pakistan became an atomic power. In 2024 Pakistan marked the ___ anniversary of nuclear tests." is "26th".