Which event pushed western allies to seek a military alliance

The communist takeover of the Czech government with Soviet support really pushed them

Explanation:

depending on what kind of map for example a pltical maps works in many ways this iss how it works it shows the areas and places the democratics and the repbulcicans reside for example if   texas chooses trump for president there a republican state and if   califronia chooses hillary there a democratic state.

during the hitler era and it caused them to declare war on germany