Anything coming out of South Asia Analysis Group is as good as trash. Best not to take them seriously.
Its not only S.asia analysis.All their saffron mentality hindutva think tanks utter the same BS about BD. Remember the tread about "a Indian lead security apparatus in S.asia" and "offering Maldives to join the Indian union". Both written by their former military men.
Russia is a dead-horse.
Japan and KSA are allies of the US. Turkey is a NATO member.
I generally do not recommend old aircraft.
KSA and ME is a must along with Turkey IMO. A robust trade and diplomatic relation with US and a deep Higher than Himalaya and deeper than Marina trench, friendship with China.