| March on the nation | | Country |
| Marches on the nation! | | Country |
| Marco Polo Bridge Incident | | News |
| Marco Polo Bridge Incident | | News |
| Mass Desertions | | Country |
| Mass Protests and Violence Erupt Due to Leftist Arrests | | Country |
| Mass Protests in the nation | | Country |
| Massive Integralist Rally in the other nation | | Country |
| Masters of the Atom | | Country |
| Mediation failed | | Country |
| Mediation failed | | Country |
| Mediation Fails | | Country |
| Mediation Successful | | Country |
| Medium Bomber Competition | | Country |
| Medium Bomber Competition | | Country |
| Medium Bomber Competition | | Country |
| Medium Bomber Competition | | Country |
| Megali Idea Approved | | Country |
| Members of the Aristocracy Offer Support | | Country |
| Membership | | Country |
| Membership in the USSR | | Country |
| Membership of the Pan-Slavic Union | | Country |
| Memel - the other nation Folds | | Country |
| Memel - the other nation Refuses Demand | | Country |
| Menderes' Traditional Group Approaches Kurdish Organizations for Alliance | | Country |
| Merging with China | | Country |
| Merging with China | | Country |
| Meritocracy in the Military | | Country |
| Mexican Entry into the nation | | Country |
| Mexican Resource Exchange | | Country |
| Mexican Weapons Shipment | | Country |
| Mexican-American Border Clashes | | News |
| Mexico Agrees | | Country |
| Mexico Extradites Trotsky | | Country |
| Mexico Joins the nation | | News |
| Mexico Refuses | | Country |
| Mexico Seeks Alliance | | Country |
| Mexico Seizes Panamá Canal | | News |
| Mexico Stirs Communist Sentiment | | Country |
| Mexico Stirs Fascist Sentiment | | Country |
| Michael Joseph Savage Dies | | Country |
| Middle East Votes to Join our nation | | Country |
| Middle East Votes to Leave our nation | | Country |
| Midwest declares for the government | | Country |
| Military Advisors Detained | | Country |
| Military Advisors Recalled | | Country |
| Military Aid from the nation | | Country |
| Military Cooperation with their Army | | Country |
| Military Coup Attempt | | Country |
| Military Crackdown succeeds | | Country |
