Using jQuery inside of a React render function

I have the following React render function:

   render: function () {
        return (
            <Popup onClose={this.props.onClose}>
                <Form entity="strategy" edit="/strategies/edit/" add="/strategies/add/">
                    <h2>Create/Edit Strategy</h2>
                    <StrategyForm pending={this.state.pending} formData={this.state.data} />
                    <div className="col-md-6">
                        <Assisting />
                    </div>
                </Form>
            </Popup>
        );
    }

I would like to make the h2 heading be based on the body class, so my question is...can I do this?

    render: function () {
        return (
            <Popup onClose={this.props.onClose}>
                <Form entity="strategy" edit="/strategies/edit/" add="/strategies/add/">
                    if ( $('body').hasClass("this") ) {
                     <h2>Create This Strategy</h2>
                    } else {
                     <h2>Create Another Strategy</h2>
                    }
                    <StrategyForm pending={this.state.pending} formData={this.state.data} />
                    <div className="col-md-6">
                        <Assisting />
                    </div>
                </Form>
            </Popup>
        );
    }

If this is a terrible idea, can someone tell me what is a better way to do this in React?