Original sentence: Goa's sole airport – the Dambolim Airport is maintained by India as a military airport, and civilian flights are permitted, when the fields can be spared from military uses
Edited sentence: Goa's sole airport – the Dambolim Airport was built by the Goan government before the occupation as a civil airport, but is maintained by India as a military airport, and civilian flights are begrudgingly permitted, when the fields can be spared from military uses