Que diferencias ideológicas separaban a estados unidos y a la URSS en 1945

After world war one, how did the allied countries hope to keep germany from becoming too powerful again?

Why do you think the delegates to the first contintal congress believed that refusing to buy british goods would their cause?

The rise of advertising in the 1920s. i am good with seeing how advertisements shape the roaring twenties and how it developed a new way of life through modern days. but i am not sure what the details of advertising in the 1920s were. if possible can you send me links (preferrably credential links) to sources that maybe show like the first company to start advertising through the radio, how advertising benefits (statistics graphs), etc.