This is the new *CloudFormation Template Reference Guide*. Please update your bookmarks and links. For help getting started with CloudFormation, see the [AWS CloudFormation User Guide](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/Welcome.html).
# AWS::EC2::EC2Fleet MaintenanceStrategies

The strategies for managing your Spot Instances that are at an elevated risk of being interrupted.
## Syntax

To declare this entity in your CloudFormation template, use the following syntax:
### JSON

```
{
 "[CapacityRebalance](#cfn-ec2-ec2fleet-maintenancestrategies-capacityrebalance)" : {{CapacityRebalance}}
}
```
### YAML

```
 [CapacityRebalance](#cfn-ec2-ec2fleet-maintenancestrategies-capacityrebalance): {{
 CapacityRebalance}}
```
## Properties

`CapacityRebalance` 
The strategy to use when Amazon EC2 emits a signal that your Spot Instance is at an elevated risk of being interrupted. 
*Required*: No 
*Type*: [CapacityRebalance](aws-properties-ec2-ec2fleet-capacityrebalance.md) 
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