How a commando raid alongside Doolittle could alter Japanese priorities

What panic could a submarine-borne commando raid have caused in Japan alongside the Doolittle raid?

A successful attack on important targets could prompt earlier troop withdrawals from Manchuria and the cancellation of some operations in China.

The hypothetical raid's effect would depend on its success and whether it destroyed important targets. A damaging attack could create enough alarm to cause Japan to cancel other operations. The comparison is with late-war plans to bring the army in Manchuria back to defend the home islands and improve Japan's negotiating position. A raid alongside the Doolittle attack could bring that defensive priority forward, potentially reducing operations against China. The extent of those consequences remains uncertain.