Imagine it is the year 2050. Global lithium reserves have reached critical levels, effectively halting battery production. You are the lead diplomatic strategist for the 'Global North Alliance.' Your counterparts are the 'Resource-Ridden South' (holders of the last mines) and the 'Eastern Technocracy' (leaders in fusion research). Develop a multi-phase negotiation strategy to secure a temporary supply of lithium while avoiding armed conflict. Your strategy must include: 1) Analysis of each bloc's motivations and red lines, 2) Three distinct concession offers, and 3) A contingency plan if the 'Eastern Technocracy' achieves a fusion breakthrough prematurely.