# RouteMatrixExclusionOptions


Specifies strict exclusion options for the route calculation. This setting mandates that the router will avoid any routes that include the specified options, rather than merely attempting to minimize them.

## Contents


 ** Countries **   <a name="location-Type-RouteMatrixExclusionOptions-Countries"></a>
List of countries to be avoided defined by two-letter or three-letter country codes.  
Type: Array of strings  
Array Members: Minimum number of 1 item. Maximum number of 100 items.  
Length Constraints: Minimum length of 2. Maximum length of 3.  
Pattern: `([A-Z]{2}|[A-Z]{3})`   
Required: Yes

## See Also


For more information about using this API in one of the language-specific AWS SDKs, see the following:
+  [AWS SDK for C\$1\$1](https://docs.aws.amazon.com/goto/SdkForCpp/geo-routes-2020-11-19/RouteMatrixExclusionOptions) 
+  [AWS SDK for Java V2](https://docs.aws.amazon.com/goto/SdkForJavaV2/geo-routes-2020-11-19/RouteMatrixExclusionOptions) 
+  [AWS SDK for Ruby V3](https://docs.aws.amazon.com/goto/SdkForRubyV3/geo-routes-2020-11-19/RouteMatrixExclusionOptions)