You are directed to protest against any act of hostility which may involve or imperil the safe and peaceful transit of persons or property across the Isthmus of Panama. The bombardment of Panama would have this effect, and the United States must insist upon the neutrality of the Isthmus as guaranteed by the treaty. NOVEMBER _20, 1901_ Notify all parties molesting or interfering with free transit across the Isthmus that such interference must cease and that the United States will prevent the interruption of traffic upon the railroad. Consult with captain of the _Iowa_, who will be instructed to land marines, if necessary, for the protection of the railroad, in accordance with the treaty rights and obligations of the United States. Desirable to avoid bloodshed, if possible. The next three telegrams are from and to the Secretary of the Navy: SEPTEMBER _12, 1902_ RANGER, _Panama_: United States guarantees perfect neutrality of Isthmus and that a free transit from sea to sea be not interrupted or embarrassed.... Any transportation of troops which might contravene these provisions of treaty should not be sanctioned by you nor should use of road be permitted which might convert the line of transit into theatre of hostility. MOODY. COLON, _September 20, 1902_ SECRETARY NAVY, _Washington_: Everything is conceded. The United States guards and guarantees traffic and the line of transit. To-day I permitted the exchange of Colombian troops from Panama to Colon, about 1,000 men each way, the troops without arms in train guarded by American naval force in the same manner as other passengers; arms and ammunition in separate train, guarded also by naval force in the same manner as other freight. MCLEAN. PANAMA, _October 3, 1902_ SECRETARY NAVY, _Washington, D. C._: Have sent this communication to the American consul at Panama: “Inform Governor while trains running under United States protection I must decline transportation any combatants, ammunition, arms, which might cause interruption traffic or convert line of transit into theatre hostilities.” CASEY.