[Fiji Hill]

Nixon never claimed to have a “secret plan” to end the Vietnam War, but that urban legend lives on.

[Paladin2]

https://www.peoplesworld.org/article/nixons-secret-plan-for-ending-the-vietnam-war-nuclear

YMMV

[Paladin2]

https://www.peoplesworld.org/article/nixons-secret-plan-for-ending-the-vietnam-war-nuclear

YMMV

[Paladin2]

Then there is this:

https://mediamythalert.com/2016/02/12/no-politico-nixon-never-said-he-had-a-secret-plan-for-vietnam/