1.   Like many arms limitation agreements, the ABM treaty contains a provision allowing countries to withdraw from the pact in cases of threats to supreme national interest.

2.   The government of Uganda immediately threatened to enter the conflict if the countries did not withdraw their forces from Congo.

3.   The rules Europe has adopted say that no country can withdraw from the union once it enters, so such a threat would create a crisis.

4.   The U.S. was also seeking a proviso that would let countries withdraw from the treaty if they came under attack.

5.   Without a binding commitment, countries could later withdraw offers put forward in the negotiating process to open and reform their markets, leaving foreign companies high and dry.

6.   Anti-Singapore protests broke out in the Philippines, and the countries withdrew their respective ambassadors for about a year.

7.   Both countries have withdrawn their ambassadors over the dispute.

8.   Both countries withdraw their ambassadors within hours of the verdict.

9.   Both countries have withdrawn their ambassadors in the current crisis.

10.   Both countries withdrew their ambassadors within hours of the verdict.