YOKOSUKA, Japan — Germany is seeking to deepen defense ties with Japan, with Defense Minister Boris Pistorius proposing a new agreement to make it easier for troops from both countries to operate on each other’s territory. Speaking at Japan’s Yokosuka naval base after talks with Japanese Defense Minister Shinjirō Koizumi on Sunday, Pistorius said Berlin had floated a so-called Reciprocal Access Agreement — a framework designed to “ease the exchange of soldiers in each other’s countries and