"Johnson Ponders Vietnam: Where Was The Error?" by Ted Sell, Philadelphia Inquirer, December 29, 1968

This article describes how President Lyndon Johnson, near the end of his time in office, reflected on whether his biggest mistake in Vietnam was waiting too long to send American combat troops. Johnson believed that by 1965, enemy forces were already too strong for South Vietnamese soldiers to handle alone, making U.S. involvement unavoidable.