I think its 咀子, not 阻子. I don't know where it is.
That last page (before the red writing) talks about how he was put on board a ship in the port of Keelung on December 2nd, 1899, and then arrived at Usa port (I think in Kōchi, Japan, but it could also refer to Usa in Nagasaki...two port cities with the same spelling). on the 8th, when he was then transferred to a hospital whose name I can't make out. It goes on to say that he was completely healed by January 30th of 1900, and was returned to the 38th infantry on February 1st, where he remained until November 30th, when his term of active service was completed.
This obviously predates the Japanese-Russian war, so he must have been called back to duty for that war.