In late-1961, the White House formed the Special Group (Augmented), headed by Robert Kennedy and including Edward Lansdale, Secretary Robert McNamara, and others. The group's objective—to overthrow Castro via espionage, sabotage, and other covert tactics—was never pursued. In March 1962, Kennedy rejected Operation Northwoods, proposals for false flag attacks against American military and civilian targets, and blaming them on the Cuban government in order to gain approval for a war against Cuba. However, the administration continued to plan for an invasion of Cuba in the summer of 1962.