The Department of Defense's National Defense Strategy notes that China's blossoming wealth has also enabled the proliferation of its military, which threatens peace in the Straits of Taiwan and potentially beyond. Russia presents its own realm of problems, especially in light of the failure of democracy to take root there. The supremacy of the United States as a global military power is an underlying message in these strategy papers, which are written as much to motivate and inspire as to guide policy. Risk management is addressed within a characteristically confident framework, reflecting the overall ambition of America's military strategies. Commitments to far-reaching objectives in Iraq and Afghanistan are toughed upon, and the rhetoric of being "at war" and engaged in a "long war" are repeated, to encourage an appreciation of the gravity of terrorism. Likewise, strategies involving "large-scale counterinsurgency, stability, and counterterrorism...

With few inconsistencies, and none glaring, these four documents testify to the cohesiveness of the American defense vision and American foreign policy. Cohesiveness of vision allows Combatant Commanders to work in tandem with collective goals, committed to the same overall defense strategy if not the same political philosophy too.
References

Department of Defense (2010). Quadrennial defense review report.

Department of Defense (2008). National defense strategy.

"The National Military Strategy of the United States of America." (2011).

"National Security Strategy." (2010).

"The National Strategy for Maritime Security." (2005).