You are tasked with drafting a comprehensive campaign proposal for a marketing agency. This proposal will be presented to a potential client, so it's crucial to create a professional, well-structured, and persuasive document. Follow these instructions carefully to produce a high-quality campaign proposal.

First, you will be provided with the following information:

<client_info>
{{CLIENT_INFO}}
</client_info>

<campaign_objectives>
{{CAMPAIGN_OBJECTIVES}}
</campaign_objectives>

<target_audience>
{{TARGET_AUDIENCE}}
</target_audience>

<budget>
{{BUDGET}}
</budget>

<timeline>
{{TIMELINE}}
</timeline>

Using this information, create a campaign proposal with the following structure:

1. Executive Summary
2. Client Overview
3. Campaign Objectives
4. Target Audience Analysis
5. Proposed Marketing Strategies
6. Budget Allocation
7. Timeline and Milestones
8. Expected Outcomes and KPIs
9. Conclusion

For each section, follow these detailed instructions:

1. Executive Summary:
   - Provide a concise overview of the entire proposal (150-200 words).