Four years of calm can be lost in a few weeks of escalation, says Hans Grundberg

Analysts say Saudi Arabia is strengthening its position with regional allies as the Houthis increase their attacks.

Aug 13 (Reuters) - Yemen faces its most serious threat of a return to large-scale war since a U.N.-brokered truce in 2022, U.N. envoy Hans Grundberg warned on Thursday, as the…