Maybe even the United States is unaware of the Yan Family's hard stance this time, even willing to officially engage the Guo Family in battle. In the eyes of the people on the U.S. side, the Yan Family should be focusing on development and unlikely to really clash with the Guo Family.
Therefore, the United States provoked conflict between the Guo Family and the Yan Family, assuming the Yan Family wouldn't dare to truly act this time.
However, the United States underestimated the power of the Iron Man Armor, not knowing that the Yan Family is waiting for an opportunity for real combat.
Last time the Iron Man Armor appeared, it didn't demonstrate strong capabilities, which led the United States to underestimate the Yan Family's current strength.
They also didn't know the Iron Man Armor recently updated its weapons, still thinking the Yan Family's Humanoid Armor would use previous combat methods.
