Before Obama even took office it was known, in May 2008:

Obama's goal? 'Jeopardize U.S. battlefield superiority'
https://www.wnd.com/2008/05/65771/


and


Obama 'declares war' on U.S. military
https://www.wnd.com/2013/03/obama-declares-war-on-u-s-military/


TEAM OBAMA "HOLLOWING OUT" U.S FORCES
https://www.wnd.com/2010/05/152381/

The Obama administration came up with the idea of sequestrations, where automatic massive cuts would be made to the U.S. military if budget reductions were not made. The Obama adminsitration suckered Republicans into accepting these sequestration conditional cuts, and then lied to the public and tried to allege that the sequestration cuts were first proposed by Republicans. Even the liberal media said that was absolutely not true.