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3. Most heavily guarded border
7. Farthest from New Delhi
8. 2 hour drive away from Kolkata
9. Part of the Sino-Indian Border Dispute
10. Borders the Indian state of Nagaland
11. Has no ongoing border disputes
12. Most prominent trading partner
13. Most native speakers of this neighbor's language
14. Most affected by the 2004 Indian Ocean tsunami
15. Most recently adopted flag design
16. Shares a dominant religion