Last Z Peace Shield Guide: Maximize Your Base Defense
Updated October 12, 2026
Last Z Peace Shield Research Guide
The Peace Shield research branch in Last Z offers crucial defensive advantages, particularly for player-versus-player combat. While the full tree requires a substantial badge investment, its most impactful benefit, Urgent Rescue, is attainable much earlier.
Peace Shield Branch Key Details
- Total Branch Cost: 270,203 Badges
- Key Unlock: Urgent Rescue (achieved at 40,523 cumulative badges)
- Primary Benefit: Enhances PvP resilience and minimizes unit casualties.
Important Note: In game environments with significant PvP activity, prioritizing Peace Shield over other less critical prestige branches is often advantageous.
Peace Shield Node Overview
This section outlines the full Peace Shield branch, grouping nodes by their total badge requirements to illustrate the progression towards Urgent Rescue and the more expensive late-game sections.
| Node Name | Levels | Badge Cost |
|---|---|---|
| Auto Repair | Lv. 1-10 | 2,313 |
| Combat Policy | Lv. 1-10 | 3,470 |
| Interceptions | Lv. 1-10 | 3,470 |
| Mobility Enhancement | Lv. 1-10 | 4,600 |
| Melee Combat | Lv. 1-10 | 4,600 |
| Weapon Upgrading | Lv. 1-10 | 4,600 |
| Target Training | Lv. 1-5 | 2,760 |
| Arms Assembly | Lv. 1-5 | 2,760 |
| Quick Assembly | Lv. 1-5 | 2,760 |
| Urgent Rescue | Lv. 1-10 | 9,190 |
| Stronger Armor | Lv. 1-10 | 11,510 |
| Shield Upgrade | Lv. 1-10 | 11,510 |
| Tactical Cover | Lv. 1-10 | 11,510 |
| Combat Policy II | Lv. 1-20 | 68,880 |
| Interceptions II | Lv. 1-20 | 68,880 |
| Recharge Shield | Lv. 1-10 | 57,390 |
Branch Summary:
- Total Nodes: 16
- Total Levels: 165
- Primary Goal: Urgent Rescue
- Final Node: Recharge Shield
Unlocking Peace Shield and Its Importance
Peace Shield is an advanced research branch, only accessible after significant progress in other areas. It is not an initial research path.
Prerequisites:
- 50% completion of Shelter Building
- 45% completion of Military Strategies
This explains why Peace Shield typically follows Military Strategies in a strategic research sequence, becoming vital for survivability before focusing on more aggressive paths. Furthermore, completing Peace Shield entirely is a requirement for the later Army Building branch.
Key Peace Shield Milestones
Understanding the badge cost at specific points helps in planning your research journey:
- Early Setup Complete: 31,333 badges (after the initial nine nodes)
- Urgent Rescue Unlocked: 40,523 cumulative badges (This is the primary reason many players pursue Peace Shield early).
- Late Defensive Core: 75,053 cumulative badges (includes Stronger Armor, Shield Upgrade, and Tactical Cover, transitioning into higher-cost nodes).
- Full Branch Completion: 270,203 cumulative badges (The two 20-level policy nodes and Recharge Shield represent a significant long-term badge investment).
Progression After Peace Shield
Upon completing the Peace Shield branch, your next research path should align with your account's overarching objectives:
- For the quickest path to T10 units, consider focusing on Unit Special Training Costs.
- For advanced combat scaling and the powerful Recharge Shield, the Siege to Seize branch is a logical next step. Note that Field Research is only available after 100% Siege to Seize completion.
- If your ultimate goal includes the Army Building path, remember that 100% Peace Shield is a prerequisite. Consult Army Building Costs for further planning.
Peace Shield Frequently Asked Questions
Q: What is the total badge cost for Peace Shield?
A: The entire Peace Shield branch costs 270,203 badges. Despite being a larger commitment than Military Strategies, it offers some of the best defensive value in the game.
Q: Where can I find Urgent Rescue within Peace Shield?
A: Urgent Rescue is located in the middle of the branch, requiring 40,523 cumulative badges to unlock. It is a critical early milestone for many players.
Q: Is it advisable to complete Peace Shield before Siege to Seize?
A: Generally, yes. For most accounts, Peace Shield provides superior real-world survivability and reduces potential unit losses more effectively than immediately pursuing the aggressive Siege to Seize path.
Q: What are the unlock requirements for Peace Shield?
A: Peace Shield becomes available once you achieve 50% completion in Shelter Building and 45% in Military Strategies.
Q: Does Peace Shield enable the Army Building branch?
A: Yes, Army Building requires 100% completion of Peace Shield, which is why many advanced accounts eventually finish this branch.
Quick Tips
- Always verify current node costs within your in-game research screen, as game updates can alter requirements.
- If your primary goal is improved survivability, calculate the badge cost to reach Urgent Rescue before committing to the entire branch.
- In-game displays for prerequisites or badge costs should always be considered the definitive source.