Partnership building for scale-up in the Veteran Sponsorship Initiative: Strategies for harnessing collaboration to accelerate impact in suicide prevention.

VSI's partnership-formation efforts leveraged a variety of implementation strategies, particularly around strengthening stakeholder interrelationships and refining procedures for coordination and communication. VSI implementation activities were further characterized by an intentional focus on trust-building over time. VSI's rapid scale-up highlights the value of partnership formation for achieving coordinated interventions to address complex problems.