European+Countries+taken+over+by+Blitzkrieg

"Blitzkrieg (Lighting War)"
 * 1) Poland (September 1939)
 * 2) **Denmark (April 1940)**
 * 3) **Norway (April 1940)**
 * 4) **Belgium (May 1940)**
 * 5) **Netherlands (May 1940)**
 * 6) **Luxembourg (May 1940)**
 * 7) **France (May 1940)**
 * 8) Yugoslavia (April 1941)
 * 9) Greece (April 1941)