Ranikhet, Sep 29 (ANI): The annual Indo-US joint military exercise 'Yudh Abhyas' focusing on combined training events within three key elements of command post exercise, field training exercise and expert academic exchanges is underway in the foothills of Himalayas in Ranikhet district of Uttarakhand. Focusing on tactical and technical skills in countering insurgency and militancy, Indian and U.S army officials started the joint exercise on Monday. The troops of both the side will train, plan and execute a series of combined strategic drills for neutralization of likely threats that may be encountered in UN peace keeping operations.