Why did the following nations do to encourage us participation in the war?

Countries like Britain and France employed various strategies to encourage U.S. participation in World War I, including Propaganda campaigns that highlighted German atrocities and the threat to democracy. They also sought economic ties, emphasizing the importance of protecting American investments in Europe. Additionally, diplomatic efforts, such as the Zimmerman Telegram, aimed to provoke U.S. engagement by revealing German plans to ally with Mexico against the U.S. These combined efforts played a crucial role in swaying American public opinion and government stance toward entering the war.