What does Infantry Attack do in AoE3?

Pikeman: damage +15%; Veteran Halberdier: damage +15%; Skirmisher: damage +15%; Revolutionary Sharpshooter: damage +15%. The game says: "Pikeman, Halberdier and Skirmisher attack increased."

Home City card

Infantry Attack

Infantry Attack (tech ID HCInfantryDamageDutch) is a Home City card in AoE3: Definitive Edition 100.19.18309, in the decks of 1 civilization, sent from the Colonial Age. Effect: Pikeman: damage +15%; Veteran Halberdier: damage +15%; Skirmisher: damage +15%; Revolutionary Sharpshooter: damage +15%.

Quick answers (3)

Which civilizations have the Infantry Attack card?: Dutch.
What does Infantry Attack do in AoE3?: Pikeman: damage +15%; Veteran Halberdier: damage +15%; Skirmisher: damage +15%; Revolutionary Sharpshooter: damage +15%. The game says: "Pikeman, Halberdier and Skirmisher attack increased."
What is the tech ID of Infantry Attack?: HCInfantryDamageDutch.

Pikeman, Halberdier and Skirmisher attack increased.

What it does

Pikeman: damage +15%
Veteran Halberdier: damage +15%
Skirmisher: damage +15%
Revolutionary Sharpshooter: damage +15%
Musketeer: damage +15%

Cost: 1
Sent from: II
Times it can be sent: 1
Game ID: HCInfantryDamageDutch

In these decks

DutchII×1

Source: techtreey.xml and the Home City files, AoE3: DE 100.19.18309 (build 25040513).