In accordance with Articles 245 and 246 (as well as entries 12 1, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 25, 37, 41, 57 and 83 of List I of List VII), the Government of the Union has extensive powers in the field of foreign affairs. It is difficult to see which aspect of external sovereignty is omitted from this exhaustive list of powers, but if one aspect were omitted, it would be covered by Article 248 and Entry 97 of List I, Annex VII, which gives the Union remaining legislative power.13 Therefore, no part of external sovereignty in India can be outside the Constitution. since the residual power of the legislative and executive powers would cover it. Contracts are of two types; self-executors and those who need national legislation to enforce it. A treaty of alliance is self-real. It does not work like a law. .