If both your countries of nationality require a visa to enter the destination country, then you should obtain a visa and have it stamped in one of your passports prior to your departure.
If the country of destination is one of your countries of citizenship, then you should just use their passport.
Someone with dual citizenship should be able to enter and reside in each country in which citizenship is held without obtaining a visa. That is part of what citizenship is about - the right to enter and travel freely in your country of citizenship.
No husband has to apply again for himself because shared visa like spouse can be granted or extended but not the citizenship for an individual.
India does not allow dual citizenship. But you can apply and get a passport-like booklet, at the nearest embassy and consulate general, that will allow you to travel to India visa-free.
Japan does not allow dual citizenship; when the person who holds dual citizenship of Japan and another country reaches the age of majority, Japanese officials ask them to surrender one of the nationalities. So, if you have not renounced your US citizenship yet and can apply for (or have) a valid US passport, you do not need a visa to move to the US for work or any other purposes.
The US recognizes dual citizenship.
Traveling with dual citizenship can impact visa requirements and entry regulations in different countries because some countries may have specific rules for dual citizens, such as requiring them to enter and exit using a specific passport. It is important for dual citizens to be aware of these regulations and to carry both passports when traveling to avoid any issues at border control.
Yes, Thailand allows dual citizenship.
India does not allow dual citizenship.
Yes, Poland allows dual citizenship.
Yes, Venezuela allows dual citizenship.
Dual citizenship is when one has citizenship rights in two countries.
Yes, it is possible to have two passports for dual citizenship.