TOKYO/WASHINGTON (Reuters) - When U.S. President Barack Obama meets Japanese Prime Minister Shinzo Abe at a summit next week, they will be battling negative undercurrents that could undermine their message that Asia's most important security alliance is firm.
Obama, stopping in Tokyo at the beginning of a four-nation Asian trip, must counter worries in Japan that his commitment to its defence in the face of an increasingly assertive China is weak.
