In Lords Mobile Infantry Defense research increases your infantry troops defense stats. It is found in the military tree.
There are 10 levels in total and once maxed it will increase your infantry defense by 135%. You need to research infantry offense before you can unlock this ability.
The table below has the resource cost and time to upgrade each level. It also shows the might and rewards granted. You can find out your own research time by using our research calculator.
Infantry Defense Research Requirements
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