Houthi expansion in Yemen threatens global energy stability

On September 15, 2026, the administration of Donald Trump faced escalating instability in the Middle East as Iranian-backed Houthi rebels seized the port of Mocha and three critical islands in the Red Sea. The failure of Saudi-backed Yemeni forces to defend these strategic locations has significantly tightened Houthi control over vital maritime transit routes.

The regional escalation has caused a sharp spike in global energy markets, with oil prices reaching $109 per barrel on Monday. This volatility is compounded by the obstruction of the Bab el-Mandeb Strait and the closure of Saudi Arabia's East-West oil pipeline, which was taken offline following an attack attributed by Riyadh to pro-Iranian militias in Iraq.

Washington now faces a narrowing window of policy options. The Trump administration is weighing deeper direct military intervention to secure the waterways versus a strategy of allowing regional allies to manage the conflict independently. Choosing the latter risks enduring the long-term economic consequences of sustained high oil prices. No formal decision has been announced, and the situation remains fluid with no immediate sign of stability returning to the region.