Saudi Arabia is vowing a resolute response to a wave of attacks from Yemen’s Iran-backed Houthi rebels early Tuesday that it said wounded at least 73 civilians.

As Washington abandons talks with Iran for an aggressive economic pressure campaign, a cornered Tehran is now threatening military escalation and a wider war to force negotiators back to the table.

The effects of the Iran war are obvious to most Americans: Gas prices have been hovering above $4 for weeks, mortgage rates are rising toward 7% and companies are adding shipping surcharges to make up for record diesel costs.