| Koszta Affair | |||||||
|---|---|---|---|---|---|---|---|
| Part of Hungarian Revolution of 1848 | |||||||
 USS St. Louis, the sloop used by Captain Ingraham to threaten the Austrian brig Huszár. | |||||||
| |||||||
| Belligerents | |||||||
 United States |
 Austrian Empire | ||||||
| Commanders and leaders | |||||||
| Captain Duncan Ingraham | Unknown | ||||||
| Strength | |||||||
| 1 sloop-of-war | 1 brig-of-war | ||||||
The Koszta Affair (1853) was the name applied to a diplomatic episode between the United States and the Austrian Empire involving the rights in foreign countries of new Americans who were not yet fully naturalized.