In this task you will be given an answer to a question. You need to generate a question. The answer given should be a correct answer for the generated question.

The Arch of Titus (Italian: Arco di Tito; Latin: Arcus Titi) is a 1st-century AD honorific arch, located on the Via Sacra, Rome, just to the south-east of the Roman Forum. It was constructed in c. AD 82 by the Emperor Domitian shortly after the death of his older brother Titus to commemorate Titus's victories, including the Siege of Jerusalem (AD 70). The arch has provided the general model for many triumphal arches erected since the 16th century -- perhaps most famously it is the inspiration for the Arc de Triomphe in Paris, France.
the arch of titus was constructed in commemoration of a victory over