Which leader is responsible for the Army's overall strategy and planning?

The leader responsible for the Army's overall strategy and planning is typically the highest-ranking official in the U.S. Army, which in this case is General Raymond T. Odierno. As the Chief of Staff of the Army, he played a crucial role in shaping military policy, developing long-term strategies, and ensuring that the Army was prepared to meet future challenges. This role involves overseeing strategic direction and operational planning, making decisions that influence the effectiveness and readiness of the entire Army.

In contrast, the other individuals listed may hold important positions within the military or have significant roles, but they do not encompass the same level of authority over the Army's overarching strategy as a Chief of Staff. General David Perkins, for instance, had important leadership roles, but his focus was likely more operational rather than strategic, while Colonel Matthew J. Ingram typically would be involved in more tactical or functional leadership rather than strategic oversight. Honorable John McHugh, as a former Secretary of the Army, dealt with policy and government relations but did not command the operational aspects of strategy planning within the military itself.