NEW : Liang : Relationship has opportunities and challenges . The trip is Defense ' first to U.S. since he became defense secretary . The relationship between the two sides suffered a setback weeklong . Ahead of his arrival in Beijing , Gates told reporters traveling with him that he intended to discuss strategies and policies to avoid `` miscalculations and misunderstandings and miscommunications . '' Gates has said he wants the two nations to hold more high-level visits .
NEW : Liang : Relationship has opportunities and challenges . The trip is Defense ' first to U.S. since he became defense secretary . The relationship between the two sides suffered a setback weeklong . Gates has said he wants the two nations to hold more high-level visits .