Leave Means Leave hold a rally at Birmingham National Conference Centre

The speaker discusses the uncertainty surrounding a second Brexit referendum and expresses a belief in leaving the EU by March 29th. They highlight dissatisfaction with the current deal and stress the importance of mobilizing support through a cross-party platform. The goal is to pressure MPs and re-mobilize the People's Army to ensure the UK becomes an independent, self-governing nation.

How does the speaker suggest people can support the cause?

What is the ultimate goal mentioned by the speaker regarding the United Kingdom?