World powers are preparing to meet in London to discuss ways to strengthen Yemen's government in the face of a rising threat posed by al-Qaeda's regional affiliate.

The one-day conference on Wednesday brings together representatives from 21 nations for talks on addressing Yemen's security situation and bolstering its faltering economy.

But as Al Jazeera's Mohamed Vall reports from the capital, Sanaa, not all Yemenis are happy with the notion of foreign intervention.