Dhaka, Aug. 4 -- A Myanmar junta air strike on a rebel-occupied ruby mining hub killed 13 people on Saturday, according to a resident and a spokesperson for an armed opposition group.Civil war has consumed Myanmar since the military seized power in a 2021 coup, sparking resistance from pro-democracy guerrillas who found common cause with long-active ethnic armed groups.Their scattered forces initially struggled to make headway, but a combined offensive starting in late 2023 seized swathes of territory, including the town of Mogok - the centre of the ruby trade.Myanmar is rich in precious stones and rare earth elements, which are coveted by all factions.However, a local who declined to be named for security reasons said the strike took place...