More than 46,000 people have been forced to flee their homes in Yemen in the past week as a rapid Houthi offensive along the Red Sea coast threatens to push the country back into a wider war and deepen an already severe humanitarian crisis.

In an interview with Al Jazeera, Yemen's ambassador warns Houthi attacks threaten global shipping.

Houthi militants backed by Iran are intensifying fighting in Yemen. They aim to control the Red Sea coast and the Bab el-Mandeb Strait. This escalation threatens a return to…