diplomacy

• Keep an open channel

  To maintain a continuous line of communication or remain receptive to future discussion and information exchange.

• Issuing an ultimatum

  To present a final demand, the rejection of which will lead to a breakdown in relations or the use of force.

• Drawing a red line

  To establish a clear, absolute limit or boundary that, if crossed, will trigger serious and immediate consequences.

• To have a delicate touch

  To handle a situation or task with great sensitivity, care, and subtlety, often to avoid causing offense, damage, or disruption.