▁large ▁support ▁landing ▁craft ▁, ▁deg aus sing ▁vessel ▁ ▁and ▁five ▁fre igh ters , ▁esc orted ▁by ▁, ▁ ▁and ▁high ▁speed ▁transport ▁, ▁Captain ▁Gl enn ▁R . ▁Hart wig ▁in ▁tact ical ▁command , ▁in ▁. ▁ ▁Another ▁sub marine ▁sc are ▁A ▁quarter ▁of ▁an ▁hour ▁into ▁the ▁second ▁dog ▁watch ▁on ▁ 2 4 ▁April ▁ 1 9 4 5 , ▁Ralph ▁Tal bot ▁left ▁the ▁con voy ▁to ▁investigate ▁a ▁sub marine ▁contact . ▁Three ▁hours ▁into ▁the ▁mid ▁watch ▁on ▁ 2 5 ▁April , ▁the ▁con voy ▁received ▁a ▁Commander ▁Task ▁Force ▁ 5 1 ▁secret ▁dispatch ▁“ warning ▁of ▁sub marine ▁activity ▁in ▁our ▁immediate ▁vic inity .” ▁Order ed ▁to ▁di vert ▁from ▁their ▁present ▁course ▁and ▁“ to ▁proceed ▁via ▁new ▁reference ▁points ” ▁to ▁their ▁destination , ▁U OK ▁ 2 ▁did ▁so . ▁Ralph ▁Tal bot ▁rejo ined ▁the ▁assemb lage ▁at ▁the ▁start ▁of ▁the ▁second ▁dog ▁watch ▁later ▁that ▁day . ▁The ▁warning ▁may ▁have ▁been ▁related ▁to ▁the ▁activities ▁of ▁the ▁Japanese ▁sub marine ▁RO - 1 0 9 , ▁L t . ▁Nak ag awa ▁H iro sh i , ▁which ▁was ▁s unk ▁with ▁all ▁hands , ▁ 5 6 ▁dead ▁all ▁told , ▁by ▁the ▁high ▁speed ▁transport ▁, ▁that ▁was ▁esc ort ing ▁another ▁Ok ina wa - bound ▁con voy , ▁after ▁three ▁attacks ▁during ▁the ▁second ▁dog ▁watch ▁on ▁ 2 5 ▁April . ▁ ▁Ok ina wa ▁En emy