Lydda (Arabic: Al-Ludd اَلْلُدّْ) dates back to at least 5600–5250 BCE. Ramle (ar-Ramlah الرملة), three kilometers away, was founded in the 8th century CE. Both towns were strategically important because they sat at the intersection of Palestine's main north–south and east–west roads. Palestine's main railway junction and its airport (now Ben Gurion International Airport) were in Lydda, and the main source of Jerusalem's water supply was 15 kilometers away. Jewish and Arab fighters had been attacking each other on roads near the towns since hostilities broke out in December 1947. Israeli geographer Arnon Golan writes that Palestinian Arabs had blocked Jewish transport to Jerusalem at Ramle, causing Jewish transportation to shift to a southern route. Israel had launched several ground or air attacks on Ramle and Latrun in May 1948, and Israel's prime minister, David Ben-Gurion, developed what Benny Morris calls an obsession with the towns; he wrote in his diary that they had to be destroyed, and on 16 June referred to them during an Israeli cabinet meeting as the "two thorns".