How many times has the NG been Federalized by a president ?

https://www.chicagotribune.com/news/ct-national-guard-deployments-timeline-htmlstory.html

In response, President John F. Kennedy issued Executive Order 11111, which federalized the Alabama National Guard, and Guard General Henry Graham then commanded Wallace to step aside, saying, "Sir, it is my sad duty to ask you to step aside under the orders of the President of the United States."[2] Wallace then spoke further, but eventually moved, and Malone and Hood completed their registration. The incident brought Wallace into the national spotligh

How many times have the milatary been Federalized by a president?

12