559th Group
A change in command of the 559th Group as Senior Colonel Dong Sy Nguyen assumes command
Role range: 1960-1975
Historical biography archive · Updated 2026-11-03
Dong Sy Nguyen Biography and Timeline
Follow Dong Sy Nguyen through 4 dated historical records for Vietnam.
Dong Sy Nguyen, historical timeline
A chronological timeline drawn from matching World History Database records.
4Distinct records
1 of 1Page
1967–1970Years on this page
1967
Ho Chi Minh Trail
A change in command of the 559th Group as Senior Colonel Dong Sy Nguyen assumes command
Role range: 1960-1975
1970
559th Group
The 559th Group is made the equivalent of a Military Region during 1970 and was once again placed under the command of General Dong Sy Nguyen
Role range: 1960-1975
Ho Chi Minh Trail
The 559th Group is made the equivalent of a Military Region during 1970 and was once again placed under the command of General Dong Sy Nguyen
Role range: 1960-1975
Records, sources and methodology
These dates and descriptions come from the historical_events database. Exact duplicate records have been collapsed. Names are grouped by the country, Name 2 and Name 1 fields; records with missing Name 2 cannot be reliably assigned to an individual biography. Check the underlying sources before formal citation.