"_Sec. 201._ When a city or province is threatened, or actually attacked, it must not, for the sake of escaping a danger, separate itself, or abandon its natural Prince, even when the State or the Prince is unable to give it immediate and effectual assistance. Its duty, its political engagements, oblige it to make the greatest efforts in order to maintain itself in its present state. If it is overcome by force, necessity, that irresistible law, frees it from its former engagements, and gives it a right to treat with the conqueror, in order to obtain the best terms possible. If it must either submit to him or perish, who can doubt but it may, and even ought to prefer the former alternative? Modern usage is conformable to this decision,--a city submits to the enemy, when it cannot expect safety from vigorous resistance. It takes an oath of fidelity to him, and its sovereign lays the blame on fortune alone." "_Sec. 202._ The State is obliged to protect and defend all its members; and the Prince owes the same assistance to his subjects. If, therefore, the State or the Prince refuses or neglects to succor a body of people who are exposed to imminent danger, the latter, being thus abandoned, become perfectly free to provide for their own safety and preservation in whatever manner they find most convenient, without paying the least regard to those who, by abandoning them, have been the first to fail in their duty. The Canton of Zug, being attacked by the Swiss in 1352, sent for succor to the Duke of Austria, its sovereign; but that Prince, being engaged in discourse concerning his hawks at the time when the deputies appeared before him, would scarcely condescend to hear them. Thus abandoned, the people of Zug entered into the Helvetic Confederacy. The city of Zurich had been in the same situation the year before. Being attacked by a band of rebellious citizens, who were supported by the neighboring nobility, and the House of Austria, it made application to the head of the Empire; but Charles IV., who was then Emperor, declared to its deputies that he could not defend it, upon which Zurich secured its safety by an alliance with the Swiss. The same reason has authorized the Swiss in general to separate themselves entirely from the Empire which never protected them in any emergency. They had not denied its authority for a long time before their independence was acknowledged by the Emperor, and the whole Germanic Body, at the treaty of Westphalia."