| Description | Cause Term |
| Buildup of arms, supplies, etc. such as battleships, cannons, etc. | |
| Allied & Central Powers | |
| Strong patriotic support for one's country | |
| Domination of one nation by another, whether militarily, politically, economically, etc. | |
| Famous killing by nationalist Serbian Gavrilo Princip | |
| Message between Mexico and Germany concerning Mexican interests in fighting US | |
| This violation came after an agreement was struck between the US and Germany over destruction of commercial ships | |
| Creel Committee's powers of persuasion used on American public | |
| A matter of US economic interests | |