Not doing regular Sunnah prayers whilst travelling apart from the Sunnah of Fajr

The traveler may pray the travel (shortened) prayer once he has passed the city limits

Traveller should make his prayers complete if he intends to stay more than 4 days

Ruling on travelling to visit the grave of the Prophet (peace and blessings of Allaah be upon him)

Women travelling without a mahram

Can he travel to a kaafir country for the sake of upholding family ties?