You can set the language for a static map, in case you don't want to use the default language.
In this example, a location in Tokyo which would generally default to Japanese text is requested in English, overwriting the regional default.
The example shows the response image for a request where language is provided, and one where the language is not provided. The corresponding labels reflect the difference between a map showing the requested language and a map that shows the default language.
https://maps.geo.us-east-1.amazonaws.com/v2/static/map?center=139.4575,35.539&style=Standard&lang=en&height=700&width=700&zoom=14
https://maps.geo.us-east-1.amazonaws.com/v2/static/map?center=139.4575,35.539&style=Standard&height=700&width=700&zoom=14