Answer:
A duty is what you owe to your fellow human as a fact of nature, and an obligation is what has been imposed by contract or custom. Generally, one is “obliged,” or “obligated,” by agreement or because of having received a benefit. If you take candy from a store, you have an obligation to pay for it.
Many colonists remained loyal to Britain during the revolutionary war because they wanted England's protection and were afraid that if they were to separate from the British that they would be invaded.
In Germany and other European countries, a chancellor is the chief minister of state.
Igor Stravinsky because of his ballet The Rite of Spring.