| |
| 1928, April 13 |
| |
| Frank B. Kellogg, U.S. secretary of state, submitted a plan for the renunciation of war to the Locarno powers. | 1 |
| |
| April 21 |
| |
| Aristide Briand, for France, presented a draft of a treaty for outlawing war. | 2 |
| |
| June 23 |
| |
| An explanatory note on the proposed Kellogg-Briand Pact was circulated among major powers, and all supported the concept. | 3 |
| |
| July |
| |
| RED LINE AGREEMENT among the major oil companies participating in the Iraq Petroleum Company, a consortium established as the boundaries of the British mandate of Iraq were determined. The companies agreed to coordinate all oil exploration in the former Ottoman lands. | 4 |
| |
| Aug. 27 |
| |
| The KELLOGG-BRIAND PACT was signed in Paris. It involved renunciation of aggressive war but had no provisions for sanctions. The League of Nations passed resolutions implementing the pact, with an optional clause for compulsory arbitration. | 5 |
| |
| Dec. 6 |
| |
| Beginning of conflict between Bolivia and Paraguay over the Chaco region (See 1928–30)). Mediation efforts by the League of Nations and the Pan-American Union were not successful in resolving the dispute, although open hostilities were avoided until 1932. | 6 |
| |
| |
