The first two posters are from East-Asian History net and I highly recommend that you click the link and go see the great article (complete with tons of cool posters) showing how nationalism was also used to sell cigarettes, alcohol and virility. It's highly recommended! See it here: East-Asian History net (Also good to get an idea about why anti-Chinese demonstrations are unproductive! And why stupid people shouldn't have children!)
Another of my favorite sites, Pink Tentacle, also has more posters at their page. Pink Tentacle has a display of posters from the 1890's to 1954. And it is called, "Addictive Ads." See it here.