How did Lord Byron assist the Greek forces before arriving in Missolonghi?

Before arriving in Missolonghi, Lord Byron provided significant support to the Greek cause in their War of Greek Independence against Turkish rule. In April 1823, he agreed to serve as an agent for the London Committee, an organization formed to assist the Greek struggle.1

While stationed in Cephalonia, Byron contributed £4,000 of his own funds to help prepare the Greek fleet for active sea service. His commitment to the cause was driven by a desire to support the movement for freedom, and he eventually sailed for Missolonghi in late December 1823 to join the forces led by Prince Aléxandros Mavrokordátos.1