Taiwanese lawmakers from all three main parties are heading to Tokyo together, a small but positive sign for Taiwan-Japan ties at a tense moment in the region.

• Deputy Legislative Speaker Johnny Chiang is leading a 14-member group to a regional parliamentary meeting in Tokyo this week.
• The group crosses party lines — six from the ruling DPP, six from the opposition KMT, and one from the Taiwan People's Party.
• Alongside the assembly, they plan to meet Japanese lawmakers about trade, the economy, and cultural ties.
• The group behind the meeting was set up in 1965 by lawmakers from Taiwan, Japan, South Korea, the Philippines, and Thailand to push democracy in Asia.
• These meetings matter to Taipei because Taiwan is shut out of most official international bodies, so lawmaker-to-lawmaker contact is one of the few channels it has.

Outlook: Expect warm statements on closer Taiwan-Japan cooperation, and likely irritation from Beijing.