Answer:
The American Revolution
Explanation:
(I'm not too sure if this is right so don't take my word for it)
Not really,
It is reliant on the intensity of the attack as well as the power of the attacking nation.
some countries have been attacked and literally never fought back but surrendered if the attacking nation is more powerful in terms of military power.
in case the intensity of the attack can be absorbed, a country can also opt for diplomacy as war is the ultimate sanction in international relation.
in case the country feels it has the capacity to protect its sovereignty then fighting back is the only option.
It would damage trade relations between the countries
The supporters you're referring to were called patrons. Patrons were usually wealthy merchants or people who have made their fortune in other ways and wanted to either have a picture of themselves and their family, or generally had a desire to support painting, some even decided to order paintings for the church in order to get in good standing with the church officials.