The Fireside Chats were a series of radio programs conducted by the US President Franklin D. Roosevelt between 1933 and 1944.
He spoke directly to US citizens about the main issues and concerns that affected the country during his presidency: the great depression, the policies that the goverment was implementing to overcome it (Emergency Banking Act or New Deal), the importance of the war effort and he even brought news from the battlefront.
Roosevelt proved himself to be a great communicator and the self-assurance that he transmited in his speeches, made citizens feel really close to their president and toidentified theirselves with this person who spoke on the radio at night and with whom they felt close and well-protected. This familiarity generated by the Fireside Chats, gained the support of many citizens for Roosevelt's policies, including the ones related to increase the war effort. The war effort ended up being determinant for the victory of the US against the Axis powers.