State governments in the United States cannot sign treaties with foreign nations. This power is reserved for the federal government under the Constitution, specifically in Article II, Section 2, which gives the President the authority to make treaties with the advice and consent of the Senate. States may enter into agreements or compacts with one another, but these must not conflict with federal law or require the consent of Congress if they involve foreign entities.
They refused to recognize their sovereignty and to uphold the treaties they made with them.
Governments.
Treaties typically involve sovereign states or international organizations as the primary parties. Representatives of these entities, often diplomats or government officials, negotiate and sign the treaties on behalf of their respective governments. Additionally, treaties may require ratification by the legislative bodies of the involved states to become legally binding. In some cases, non-state actors, such as indigenous groups or international NGOs, may also be indirectly involved in treaty discussions or negotiations.
legislative
State governments within the United States cannot declare war, make treaties, print money or mint coins.
The power to make war. The power to negotiate or agree to treaties with foreign nations. All these are in Article Four, which includes a prohibition of one state discriminating against the citizens of another state, for instance by making criminal penalties more severe for non-citizens than for citizens.
Executive
Executive Branch :)
State governments do not have the duty to conduct foreign affairs or engage in international relations, as this responsibility lies exclusively with the federal government. Additionally, they cannot print or issue their own currency, a function reserved for the federal government. Furthermore, state governments cannot enter into treaties with foreign nations without federal approval.
State governments cannot: make treaties create their own currency pass ex post facto laws declare war
Congress
State borders were typically decided through a variety of means, such as historical treaties, land purchases, territorial disputes, geographic boundaries (rivers, mountains), and legislative actions by governments. In the United States, many state borders were established through treaties with Native American tribes, colonial charters, and subsequent government actions.