Army strength: 134,829 people Navy strength: 94,916 people Marine Corps strength: 19,198 people Air Force strength: not yet formed Total strength: 248,943 people Percent of population enlisted: 0.21% American Naval forces and Marines increased their presence in Shanghai due to faction-related fighting, and a Naval guard was called to the American consulate in Nanking when Chinese nationalists overtook the city. Meanwhile, the U.S. military was trying to utilize its small budget to craft new weapons and improve existing ones, taking full advantage of the technological growth of the 1920s.