What barred French and British warship from American ports?

The Neutrality Acts of the 1930s, particularly those enacted between 1935 and 1939, restricted American involvement in foreign conflicts and barred French and British warships from American ports. These laws aimed to keep the United States neutral and avoid entanglement in overseas wars by prohibiting the sale of arms and munitions to belligerent nations. Additionally, the U.S. maintained a policy of non-intervention during the early stages of World War II, further limiting access to its ports for foreign military vessels.