Any municipality or county in the State of Mississippi now owning or hereafter acquiring any land for public purposes may convey and grant said land to the United States of America, its successors or assigns, or to the State of Mississippi, upon and for any consideration deemed sufficient by the mayor and councilmen or aldermen of such municipality or the supervisors of a county when the purposes of the United States of America or the State of Mississippi in acquiring the land is to use same as a site for a veterans hospital or soldiers home or any other purpose connected with the care and attention of the veterans of the various wars of the United States.