Saudi Arabia has moved to link three key eastern Yemeni governorates to its national electricity grid, a step that analysts say could deepen its influence in a resource-rich and strategically vital region. Authorities in the Saudi-backed government in Aden confirmed that Riyadh had decided to connect Al-Mahra, Shabwa and Hadramout to its unified grid. The move comes despite earlier Saudi announcements of multimillion-dollar local electricity pro…