Civilian casualties caused by ISAF operations have been a continuing source of tension between Western and Afghan officials.
Australia's deportation of New Zealand citizens, including some who have lived in Australia most of their lives, has been a continuing source of tension in trans-Tasman relations.
Though a native of Nashville who studied at the Art Institute of Chicago, Red Grooms moved to New York when he was 20 in 1957, and the city has been a continuing source of inspiration, energy and humor in his work ever since.
The fate of the property has been a continuing source of tension and concern in Brooklyn Heights and nearby neighborhoods, where residents say the land would be an ideal recreational area for their park-starved communities.
China, now wealthy, has been a continuing source of economic assistance to Cuba, whose lethargic planned economy was devastated by the loss of economic support from the former Soviet Union.
The inability to attract high-level defectors has been a continuing source of consternation for Mr. Assad's opponents and an enduring sign of the government's resilience, despite its growing international isolation.
The routine whirring of rotors over the city, though, has been a continuing source of friction with residents who would like to eliminate what they consider nonessential helicopter flights.
Whether he had a unified conception of what he was up to in all his intellectual efforts, and if so what this conception might be, has been a continuing source of controversy among Newton scholars.
The name of the warship that served the Confederacy in the Battle of Hampton Roads has been a continuing source of confusion and some contention.
Those few minutes of observation allowed me to understand just how important film is to Ran, why he is so consumed by its power, and why it has been a continuing source of inspiration in his music-making.
