PZL W-3 Sokół Multi-Purpose Combat Helicopter, Poland

The PZL W-3 Sokół (en: Falcon) is a Polish medium-size, twin-engine, multipurpose helicopter manufactured by PZL-Świdnik (now AgustaWestland Świdnik). The PZL W-3 military version was designed to deliver combat support for the armed forces. It can destroy fixed and moving armoured targets as well as hostile troops.
The design of the PZL W-3 Sokol combat helicopter was based on the inputs from the Polish Air Brigade's combat operations in Iraq.

Mil Mi-24 Hind Assault and Attack Helicopter,Russia

The Mil Mi-24 (Russian: Миль Ми-24; NATO reporting name: Hind) is a large helicopter gunship, attack helicopter and low-capacity troop transport with room for eight passengers. It is produced by Mil Moscow Helicopter Plant and has been operated since 1972 by the Soviet Air Force and its successors, along with more than 30 other nations.
Soviet pilots called the Mi-24 the "flying tank" (летающий танк; letayushchiy tank), a term used historically with the famous World War II Soviet Il-2 Shturmovik armored ground attack aircraft.

Bell Boeing V-22 Osprey Tilt-Rotor Aircraft, United States of America

The Bell Boeing V-22 Osprey is an American multi-mission, tiltrotor military aircraft with both a vertical takeoff and landing (VTOL), and short takeoff and landing (STOL) capability. It is designed to combine the functionality of a conventional helicopter with the long-range, high-speed cruise performance of a turboprop aircraft. 
The V-22 Osprey developed by Boeing and Bell Helicopters. Boeing is responsible for the fuselage, landing gear, avionics, electrical and hydraulic systems, performance and flying qualities.