They used Maginot Line. The Maginot Line was built to fulfill several purposes: To prevent a German surprise attack. ... To push Germany into an effort to circumvent via Switzerland or Belgium, and allow France to fight the next war off French soil to avoid a repeat of 1914–1918. To be used as a basis for a counter-offensive.
It prohibits any laws that establish a national religion, impede the free exercise of religion, abridge the freedom of speech, infringe upon the freedom of the press, interfere with the right to peaceably assemble, or prohibit citizens from petitioning for a governmental redress of grievances.
Palmer raids was a series raid made by the US Department of Justice to capture leftists from the US. Palmer assigned J. Edgar Hoover to head a new division called the General Intelligence Division. This branch is responsible for investigating the programs of the leftists and identify their members.
