Pedzisa mutsara unotevera: Basa reSignal Corps muHondo yeSpain-America ya1898 uye yakazotevera
Kumukira kwePhilippine kwakanga kuri pamwero mukuru zvikuru kupfuura kwakanga kwave kuri muHondo yaVanhu. Mukuwedzera kune zviratidzo zvekuona, kusanganisira heliograph, iyo corps yakapa nhare uye telegraph waya mitsara uye kutaurirana kwetambo, yakakurudzira kushandiswa kwemafoni muhondo, yakashandiswa muhondo yekutora mifananidzo, uye yakagadziridza kushandiswa kwemabhaluni. Nguva pfupi hondo yapera, Signal Corps yakavaka Washington-Alaska Military Cable and Telegraph System (WAMCATS), inozivikanwawo seAlaska Communications System (ACS), ichiunza teregirafu yekutanga isina waya muWestern Hemisphere.