What is known about Iran's new underground "missile city"?

Iran's Revolutionary Guard unveiled a new underground missile city, showcasing ballistic and cruise missiles. Military leaders claim these advanced missiles will surprise enemies. The facility aims to enhance defense against US and Israeli attacks, following a trend of relocating military assets underground. Despite previous losses, Iran is reportedly ramping up missile production. Iranian officials assert that military capabilities extend beyond misleading statistics, emphasizing the importance of this missile city for sustainable deterrence. Israel's Foreign Ministry labeled it a terrorist hideout, warning of Iran's intentions against Israel and the West. Meanwhile, US-Iran negotiations remain stalled over nuclear concessions, with Iran refusing to dismantle its nuclear capabilities. Iranian leaders threaten retaliation against US bases if attacked, highlighting tensions in the region.