The subsequent US arms embargos, the outbreak of WWI, restricted access to international arms markets, and the lack of a developed domestic industrial base forced Mexican administrations to explore different venues to supply their respective troops.
From 1912 to 1930, Mexico dispatched several military and commercial missions to Germany, Spain, Italy, and Japan to offer raw minerals, oil, and trade concessions in exchange for arms, ammunition, and equipment to manufacture war materials domestically. These same arms were later utilized to equip second-line units, offered to national resistance movements fighting against US interests in Central America to distract the American government's pressure on Mexico, or given to foreign countries for ideological reasons.