GC maintenance and citizenship question

[dietpepsi]

Hi,

I have had a GC for more than 2 years, and am planning to move to Europe for 2 years (possibly 3) on a 'expatriate' contract from my company. The contract provides once-a-year trips to US. My questions are:

1. Do I need to get a re-entry permit, even if I am planning to come here once a year, to maintain GC?

2. Does my naturalization clock reset? Is there any way to keep it running (like making a trip once in 6 months instead of a year)?

Thanks a lot for your response.

[immihelp]

Read

http://www.immihelp.com/greencard/reentry-permit.html

http://www.immihelp.com/greencard/retain-greencard.html

http://www.immihelp.com/citizenship/naturalization-eligibility-worksheet.html