Table 2 Manipulations in Studies 2–5.

From: How civilian casualty information shapes support for US involvement in an ally country’s war effort

Studies 2 & 3

Study 4

Civilian Casualties – Present

Since Russia invaded Ukraine, over 100,000 Ukrainian civilians were killed or injured, many of them due to Russia targeting civilian infrastructures such as residential areas, schools, hospitals, and public transportation.

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Since Russia invaded Ukraine, over 100,000 Ukrainian civilians were killed or injured, many of them due to Russia targeting civilian infrastructures such as residential areas, schools, hospitals, and public transportation.

Civilian Casualties – Absent

Since Russia invaded Ukraine, the situation in the region has been very complicated, with many factors contributing to the ongoing tension and uncertainty.

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Since Russia invaded Ukraine, over 100,000 Ukrainian military personnel were killed or injured, many of them due to Russia targeting military infrastructures such as barracks, training facilities, logistics bases, and transportation convoys.

Study 5: Example

Conflict 1

Conflict 2

War Duration: 4 months

War Duration: 48 months

US Ally Country X

US Ally Country A

In conflict with Y

In conflict with B

Impact of Adversary on US Ally Country

Number of Civilian Casualties in Ally Country: 2240 civilian casualties

Number of Civilian Casualties in Ally Country: 4429 civilian casualties

Percentage of Ally infrastructures lost: 20% of civilian infrastructures

Percentage of Ally infrastructures lost: 39% of civilian infrastructures

Recent Event Outcome in Ally Country: 46 civilians killed and 86 injured during a siege on a city district.

Recent Event Outcome in Ally Country: 80 civilians killed and 93 injured during a raid on a cultural center.

US Adversary Country Y

US Adversary Country B

In conflict with X

In conflict with A

Impact of US Ally on Adversary Country

Number of Civilian Casualties in Adversary Country: 392 civilian casualties

Number of Civilian Casualties in Adversary Country: 2101 civilian casualties

Percentage of Adversary infrastructures lost: 23% of civilian infrastructures

Percentage of Adversary infrastructures lost: 31% of civilian infrastructures